{"title":"USA Made Tubes","description":"\u003cp data-start=\"75\" data-end=\"432\"\u003eA handpicked lineup of vintage American-made vacuum tubes from the golden age of audio. From RCA black plates to GE and Sylvania classics, these tubes deliver the warmth, tone, and reliability that built the sound of hi-fi and rock 'n' roll. Tested, matched, and ready to bring your amp—or your entire system—to life.\u003c\/p\u003e\n\u003cp data-start=\"434\" data-end=\"502\" data-is-last-node=\"\" data-is-only-node=\"\"\u003e \u003c\/p\u003e","products":[{"product_id":"rca-12ax7","title":"RCA 12AX7","description":"\u003ch1\u003e\u003cstrong\u003eRCA 12AX7 Collection\u003c\/strong\u003e\u003c\/h1\u003e\n\u003cp\u003e\u003cstrong\u003e\u003ciframe title=\"YouTube video player\" src=\"https:\/\/www.youtube.com\/embed\/8V3BB_nqxVU\" height=\"315\" width=\"560\"\u003e\u003c\/iframe\u003e\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eOver the years, RCA has offered a variety of different types of 12AX7's (black plates, long grey plates, short grey plates, etc.) and each 12AX7 type has their own strengths, weaknesses, and tonal qualities.\u003c\/p\u003e\n\u003ch2\u003e\u003cstrong\u003eHere are a few rules to remember:\u003c\/strong\u003e\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003eShorter plates are less noisy (on average)\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cul\u003e\n\u003cli\u003eLonger plates are tonally more complex i.e. more \"depth\/fullness\" (on average)\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eReach out to a Fuzz expert\u003c\/strong\u003e if you would like more help determining what tubes are best for you! We can be reached at Support@FuzzAudio.com or by clicking the chat icon in the lower right hand corner of your screen. \u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3 data-mce-fragment=\"1\"\u003e\u003cspan data-mce-fragment=\"1\"\u003e\u003cstrong data-mce-fragment=\"1\"\u003eRCA 12AX7 Black Plate\u003c\/strong\u003e\u003c\/span\u003e\u003c\/h3\u003e\n\u003cp data-mce-fragment=\"1\"\u003e\u003cspan data-mce-fragment=\"1\"\u003e\u003c\/span\u003eThe RCA black plate 12AX7 is 1 of\u003cspan\u003e \u003c\/span\u003e\u003ca href=\"https:\/\/fuzzaudio.shop\/products\/rca-12ax7\" target=\"_blank\"\u003e2\u003c\/a\u003e long plate 12AX7 variations manufactured by RCA and is the oldest RCA 12AX7 we offer.\u003c\/p\u003e\n\u003cp data-mce-fragment=\"1\"\u003eManufactured roughly between 1950-1959, these tubes would be found stock in classic 1950's Fender Tweed Amplifiers, along with many amplifiers made in the 50's. They are THE best option for restoring American 1950's amps back to former glory or enhancing the sound of a clone!\u003c\/p\u003e\n\u003cp data-mce-fragment=\"1\"\u003eTwo Notable amps that originally used RCA Black Plate 12AX7's:\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cspan\u003eFender Champ\u003c\/span\u003e\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eTeletronix LA-2A \u003c\/span\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp data-mce-fragment=\"1\"\u003e\u003cspan data-mce-fragment=\"1\"\u003eBlack plate tubes flourish in smaller amplifiers (typically one speaker) but are excellent for most applications.  They\u003c\/span\u003e have the least amount of headroom (breakup sooner) amongst the RCA 12AX7 types and come with a HUGE bottom end. They are super warm and are a great option to get rid of some \"shrill\" in any amplifier.\u003c\/p\u003e\n\u003cp data-mce-fragment=\"1\"\u003eThe RCA 12AX7 black plates' distorted sound is legendary, with lows, mids, and highs all staying more defined than any other tube. If you like fuzz, or play heavy rock and roll- the black plate is for you. \u003c\/p\u003e\n\u003cp data-mce-fragment=\"1\"\u003eThat being said, black plates can be a tad noisy and if you are trying to avoid noise, these may not be a great choice. Likewise, if you play clean.. these should not be considered as they reduce headroom (breakup sooner) and again, can be noisy. \u003c\/p\u003e\n\u003cp data-mce-fragment=\"1\"\u003eBest tubes for one speaker amps hands down. \u003c\/p\u003e\n\u003cp\u003e\u003cbr\u003e\u003c\/p\u003e\n\u003cp\u003e\u003ciframe src=\"https:\/\/www.youtube-nocookie.com\/embed\/ukcW1VpRK2w\" height=\"315\" width=\"560\"\u003e\u003c\/iframe\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003e\u003cstrong\u003e\u003cu\u003eRCA 7025 (Short Plate)\u003c\/u\u003e\u003c\/strong\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003eIn many ways, the RCA 7025 is the opposite of the black plate. It has grey short plates, it is quiet, comes with more headroom, the most recent of RCA tubes made and can be less 3 dimensional in tone. \u003cem\u003eKeep in mind that all RCA 12AX7 variants are tonally exceptional- yet few tubes are as warm as US long plate tubes... \u003c\/em\u003e\u003c\/p\u003e\n\u003cp\u003eRumor is that the 7025 was invented\/manufactured to reduce noise in larger guitar amplifiers, and could be found stock in fender amplifiers throughout the 60's. It is the most recent of the RCA tubes manufactured, along with the 12AX7A\/ECC83. They are exceptional in Twin Reverbs, any blackface Fender amp, or any application where noise is undesired. \u003c\/p\u003e\n\u003ch3\u003e\u003cspan style=\"text-decoration: underline;\"\u003e\u003cstrong\u003eRCA 12AX7 (Long Grey Plate)\u003c\/strong\u003e\u003c\/span\u003e\u003c\/h3\u003e\n\u003cp\u003eFound stock in Fender, Silvertone, Gibson and so many more classic amplifiers of the late 50's and early 60's, the long grey plate has been heard a million times on all your favorite albums from the 60s and 70s. \u003c\/p\u003e\n\u003cp\u003eThe RCA long grey plate 12AX7 will be less noisy than the black plate but more noisy than the 7025 or 12AX7A (long plates=more noise but better tone). Like the black plate, the long grey plate breaks up sooner and has amazing breakup and clean tone. \u003c\/p\u003e\n\u003cp\u003eBelieve it or not, at Fuzz Audio, we consider this tube the best overall RCA 12AX7 tube if a little noise does not bother you and you like to play clean and dirtay evenly. Compared to the black plate, the long grey plate will have better cleans and less noise. Again, if your amplifier is larger and noise is an issue.. you should consider another type over this one. \u003c\/p\u003e\n\u003ch3\u003e\n\u003cspan style=\"text-decoration: underline;\"\u003e\u003cstrong\u003eRCA 12AX7A (Short Plate)\u003c\/strong\u003e\u003c\/span\u003e\u003cbr\u003e\n\u003c\/h3\u003e\n\u003cp\u003eCan't wait to get push back from what we are about to say.. but 7025 and 12AX7A are for all into intensive purposes the same.... queue angry mob! \u003c\/p\u003e\n\u003cp\u003eAlthough, maybe slightly more noisy, the 12AX7A\/ECC83 is a fantastic all around tube that is extremely quiet and great tonally. \u003c\/p\u003e","brand":"Fuzz Audio","offers":[{"title":"12AX7A Short Grey Plate - NOS","offer_id":32003960471587,"sku":"RCAX7AN","price":100.0,"currency_code":"USD","in_stock":true},{"title":"12AX7A Short Grey Plate - ANOS","offer_id":39514978910243,"sku":"RCAX7AA","price":80.0,"currency_code":"USD","in_stock":false},{"title":"Long Grey Plate 12AX7 - NOS","offer_id":32163985948707,"sku":"RCAX7N","price":100.0,"currency_code":"USD","in_stock":false},{"title":"Long Grey Plate 12AX7 - ANOS","offer_id":39514978877475,"sku":"RCAX7A","price":80.0,"currency_code":"USD","in_stock":true},{"title":"Black Plate 12AX7 - NOS","offer_id":32201409364003,"sku":"RCAX7BPN","price":200.0,"currency_code":"USD","in_stock":false},{"title":"Black Plate 12AX7 - Tests NOS","offer_id":39514977927203,"sku":"RCAX7BPT","price":110.0,"currency_code":"USD","in_stock":false},{"title":"7025 Short Grey Plate- NOS","offer_id":32201409921059,"sku":"RCA7025N","price":160.0,"currency_code":"USD","in_stock":false},{"title":"7025 Short Grey Plate - Tests NOS","offer_id":39514978844707,"sku":"RCA7025T","price":90.0,"currency_code":"USD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0275\/0699\/9331\/products\/rca-12ax77025-options-nos-tubes-fuzz-audio-12ax7-long-grey-plate-495369.jpg?v=1715467698"},{"product_id":"rca-6v6gt","title":"RCA 6V6GT","description":"\u003cp\u003e\u003ciframe title=\"YouTube video player\" src=\"https:\/\/www.youtube.com\/embed\/8V3BB_nqxVU\" height=\"315\" width=\"560\" allowfullscreen=\"\" allow=\"accelerometer; autoplay; clipboard-write; encrypted-media; gyroscope; picture-in-picture\" frameborder=\"0\"\u003e\u003c\/iframe\u003eDo not think twice about installing any version of an RCA 6V6 into your Fender or USA style 6V6 amp.\u003c\/p\u003e\n\u003cp\u003e\u003cmeta charset=\"utf-8\"\u003ePick up to 2-4 RCA 6V6GT, 6V6GTA, or JAN 6V6GT and will take care of the matching for no extra cost.\u003c\/p\u003e\n\u003ch3\u003e\n\u003cmeta charset=\"utf-8\"\u003e \u003cstrong\u003eRCA 6V6GT (1940-1962):\u003c\/strong\u003e\n\u003c\/h3\u003e\n\u003cp\u003eThe best tube for vintage Fender and Vintage USA amps. RCA 6V6GT are super warm, full and robust in tone. They are as deep in lows as they are brilliant in high tones. They are THE sound of classic rock and roll.\u003c\/p\u003e\n\u003cp\u003e\u003cmeta charset=\"utf-8\"\u003eWould you like a little extra ruggedness and security from tubes getting damaged in transit? Consider the JAN version of the 6V6GT if you travel with your amp often!\u003c\/p\u003e\n\u003ch3\u003e6V6GTA (1962-1972):\u003c\/h3\u003e\n\u003cp\u003eFound in later classic Fender amps the RCA 6V6GTA is another classic.\u003c\/p\u003e\n\u003cp\u003eCompared to the GT version, RCA 6V6GTA have more headroom and more high-end than their GT brothers. \u003cbr\u003e\u003c\/p\u003e\n\u003ch3\u003eJAN\/Military (1940-1955): \u003cbr\u003e\n\u003c\/h3\u003e\n\u003cp\u003eSame exact thing as the RCA 6V6GT but military tested for extra longevity and ruggedness. If you are a touring musician,  trust JAN RCA 6V6GT!\u003c\/p\u003e\n\u003ch3\u003e\u003cstrong\u003eNeed help deciding what tubes are best for you?\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cp\u003eUse our\u003cspan\u003e \u003c\/span\u003e\u003ca href=\"https:\/\/fuzzaudio.com\/vacuum-tubes-plate-cheat-sheet-fuzz-audio\" target=\"_blank\"\u003eplate cheat sheet\u003c\/a\u003e\u003cspan\u003e \u003c\/span\u003eand\u003cspan\u003e \u003c\/span\u003e\u003ca href=\"https:\/\/fuzzaudio.com\/category\/tube-buyers-guide\" target=\"_blank\"\u003evacuum tube buyers guide\u003c\/a\u003e\u003cspan\u003e \u003c\/span\u003eto determine which tubes are best for you. Likewise, you are welcome to reach out to us directly at\u003cspan\u003e \u003c\/span\u003e\u003ca href=\"mailto:Support@FuzzAudio.com\" target=\"_blank\"\u003eSupport@FuzzAudio.com\u003c\/a\u003e\u003cspan\u003e \u003c\/span\u003eor by using our chat located on our shop page if you have further questions.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eNOS vs. ANOS vs. Test NOS\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eThese designations are strictly used to describe the cosmetic condition of our tubes. All tubes we sell test identically, come with 100% life and are guaranteed to work in your device!\u003c\/p\u003e\n\u003cp\u003eIf you are picky about owning an original box or wanting a specific logo please reach out to us\u003cspan\u003e \u003c\/span\u003e\u003cu\u003ebefore purchasing.\u003c\/u\u003e\u003c\/p\u003e\n\u003col\u003e\n\u003cli\u003e\n\u003cstrong\u003eNOS (New Old Stock) Tubes-\u003cspan\u003e \u003c\/span\u003e\u003c\/strong\u003eare 100% brand new vintage tubes in mint cosmetic condition with show zero signs of use. You should expect a legible logo and clean straight pins. An original box is likely but not guaranteed. \u003c\/li\u003e\n\u003c\/ol\u003e\n\u003col start=\"2\"\u003e\n\u003cli\u003e\n\u003cstrong\u003e\u003c\/strong\u003e\u003cstrong\u003eANOS Tubes-\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eotherwise known as “almost new old stock” tubes are basically new, but may show slight signs of use in cosmetic condition, such as a missing logo or slightly bent pins. An original box is possible but unlikely.\u003cstrong\u003e \u003c\/strong\u003e\n\u003c\/li\u003e\n\u003c\/ol\u003e\n\u003col start=\"3\"\u003e\n\u003cli\u003e\n\u003cstrong\u003eTest NOS Tubes-\u003cspan\u003e \u003c\/span\u003e\u003c\/strong\u003eare used but still operating to specification with 100% life. These tubes are equal in function to NOS valves, yet they cost considerably less because they have cosmetic blemishes. If you plan to disappear your tubes into the back of an amplifier or do not care what the tubes look like, then this is cost effective choice. Blemishes and cosmetic imperfections do not affect tone…\u003c\/li\u003e\n\u003c\/ol\u003e\n\u003cp\u003e\u003cstrong\u003eLogos:\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eVintage tubes were have a wide variety of logos printed on them. It is not uncommon to see a Mullard made tube with an RCA or GE logo, or a GE made tube with a Mullard logo. Your tube may come with a logo such are Heath Kit, Baldwin, Fisher, Hammond, Magnavox, Fender, Gibson, Silvertone, etc. but the true manufacturer of that tube will be correct to your order. If you are looking for a specific logo please reach out before purchase.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003e\u003c\/strong\u003e\u003cstrong\u003eOur Standards:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eAll tubes are tested for \u003cstrong\u003emicrophonics \u003c\/strong\u003eand are guaranteed to work in sensitive audio applications\u003c\/li\u003e\n\u003cli\u003eAll tubes sold are guaranteed to have strong (to spec) NOS test scores with 100% life\u003c\/li\u003e\n\u003cli\u003eAll tubes are tested on a calibrated Hickok 539C, Maxi-Matcher, E-Tracer or other industry standard tube analyzers\u003c\/li\u003e\n\u003cli\u003e\u003cstrong\u003eTubes are guaranteed for one year and can be returned within 30 days\u003c\/strong\u003e\u003c\/li\u003e\n\u003cli\u003ePreamp tubes matched by gain and mutual conductance (Gm)\u003c\/li\u003e\n\u003cli\u003ePower tubes matched by mA and Gm\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eDon’t forget to email\u003cspan\u003e \u003c\/span\u003e\u003ca href=\"mailto:Support@fuzzaudio.com\"\u003eSupport@fuzzaudio.com\u003c\/a\u003e\u003cspan\u003e \u003c\/span\u003eor reach out to us via chat if you need help picking out valves for your device.\u003c\/p\u003e","brand":"Fuzz Audio","offers":[{"title":"RCA 6V6GT \/ NOS","offer_id":32230881755171,"sku":"","price":70.0,"currency_code":"USD","in_stock":false},{"title":"RCA 6V6GT \/ Tests NOS","offer_id":39687331971107,"sku":"","price":50.0,"currency_code":"USD","in_stock":true},{"title":"RCA 6V6GTA \/ NOS","offer_id":32230881787939,"sku":"","price":70.0,"currency_code":"USD","in_stock":false},{"title":"RCA 6V6GTA \/ Tests NOS","offer_id":39687332003875,"sku":"","price":55.0,"currency_code":"USD","in_stock":true},{"title":"RCA JAN 6V6GT\/VT-107 (Military) \/ NOS","offer_id":32230881820707,"sku":"","price":100.0,"currency_code":"USD","in_stock":false},{"title":"RCA JAN 6V6GT\/VT-107 (Military) \/ Tests NOS","offer_id":39687332036643,"sku":"","price":70.0,"currency_code":"USD","in_stock":false},{"title":"RCA 6V6GTY (Brown Base) \/ NOS","offer_id":32335366357027,"sku":"","price":85.0,"currency_code":"USD","in_stock":false},{"title":"RCA 6V6GTY (Brown Base) \/ Tests NOS","offer_id":39687332069411,"sku":"","price":65.0,"currency_code":"USD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0275\/0699\/9331\/products\/rca-6v6-options-nos-tubes-fuzz-audio-6v6gt-913315.jpg?v=1741453252"},{"product_id":"rca12au7","title":"RCA 12AU7 (Plate Options)","description":"\u003cp\u003e\u003cstrong\u003eRCA Black Plate- \u003c\/strong\u003eThe king of warmth and bass. Typically a noisy tube, we screen all black plates for extra low noise to make sure they can be used in just about any audio application. If budget allows these are a must for any system lacking in warmth or low end response.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eRCA Long Grey Plate- \u003c\/strong\u003eOne of the best sounding US made tubes. This RCA 12AU7 may not come with the same quiet noise floor as it’s clear top twin, but it certainly out competes most tubes for warmth and tonal definition. \u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eRCA 12AU7A Clear Top-\u003c\/strong\u003e   Known for their rich, warm tone, and their extra low noise floor 12AU7 clear tops are classic. Best used in sensitive audio applications. \u003c\/p\u003e\n\u003cmeta charset=\"utf-8\"\u003e\n\u003cp\u003eAny of these RCA 12AU7's would have been found stock in vintage Fender, Gibson, Macintosh, Marantz, Supro, Danelectro, Hammond and Silvertone Amps, just to name a few...\u003cbr\u003e\u003c\/p\u003e\n\u003ch3\u003e\u003cstrong\u003eNeed help deciding what tubes are best for you?\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cp\u003eUse our\u003cspan\u003e \u003c\/span\u003e\u003ca href=\"https:\/\/fuzzaudio.com\/vacuum-tubes-plate-cheat-sheet-fuzz-audio\" target=\"_blank\"\u003eplate cheat sheet\u003c\/a\u003e\u003cspan\u003e \u003c\/span\u003eand\u003cspan\u003e \u003c\/span\u003e\u003ca href=\"https:\/\/fuzzaudio.com\/category\/tube-buyers-guide\" target=\"_blank\"\u003evacuum tube buyers guide\u003c\/a\u003e\u003cspan\u003e \u003c\/span\u003eto determine which tubes are best for you. Likewise, you are welcome to reach out to us directly at\u003cspan\u003e \u003c\/span\u003e\u003ca href=\"mailto:Support@FuzzAudio.com\" target=\"_blank\"\u003eSupport@FuzzAudio.com\u003c\/a\u003e\u003cspan\u003e \u003c\/span\u003eor by using our chat located on our shop page if you have further questions.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eNOS vs. ANOS vs. Test NOS\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eThese designations are strictly used to describe the cosmetic condition of our tubes. All tubes we sell test identically, come with 100% life and are guaranteed to work in your device!\u003c\/p\u003e\n\u003cp\u003eIf you are picky about owning an original box or wanting a specific logo please reach out to us\u003cspan\u003e \u003c\/span\u003e\u003cu\u003ebefore purchasing.\u003c\/u\u003e\u003c\/p\u003e\n\u003col\u003e\n\u003cli\u003e\n\u003cstrong\u003eNOS (New Old Stock) Tubes-\u003cspan\u003e \u003c\/span\u003e\u003c\/strong\u003eare 100% brand new vintage tubes in mint cosmetic condition with show zero signs of use. You should expect a legible logo and clean straight pins. An original box is likely but not guaranteed. \u003c\/li\u003e\n\u003c\/ol\u003e\n\u003col start=\"2\"\u003e\n\u003cli\u003e\n\u003cstrong\u003e\u003c\/strong\u003e\u003cstrong\u003eANOS Tubes-\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eotherwise known as “almost new old stock” tubes are basically new, but may show slight signs of use in cosmetic condition, such as a missing logo or slightly bent pins. An original box is possible but unlikely.\u003cstrong\u003e \u003c\/strong\u003e\n\u003c\/li\u003e\n\u003c\/ol\u003e\n\u003col start=\"3\"\u003e\n\u003cli\u003e\n\u003cstrong\u003eTest NOS Tubes-\u003cspan\u003e \u003c\/span\u003e\u003c\/strong\u003eare used but still operating to specification with 100% life. These tubes are equal in function to NOS valves, yet they cost considerably less because they have cosmetic blemishes. If you plan to disappear your tubes into the back of an amplifier or do not care what the tubes look like, then this is cost effective choice. Blemishes and cosmetic imperfections do not affect tone…\u003c\/li\u003e\n\u003c\/ol\u003e\n\u003cp\u003e\u003cstrong\u003eLogos:\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eVintage tubes have a wide variety of logos printed on them. It is not uncommon to see a Mullard made tube with an RCA or GE logo, or a GE made tube with a Mullard logo. Your tube may come with a logo such are Heath Kit, Baldwin, Fisher, Hammond, Magnavox, Fender, Gibson, Silvertone, etc. but the true manufacturer of that tube will be correct to your order. If you are looking for a specific logo please reach out before purchase.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003e\u003c\/strong\u003e\u003cstrong\u003eOur Standards:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eAll tubes are tested for \u003cstrong\u003emicrophonics \u003c\/strong\u003eand are guaranteed to work in sensitive audio applications\u003c\/li\u003e\n\u003cli\u003eAll tubes sold are guaranteed to have strong (to spec) NOS test scores with 100% life\u003c\/li\u003e\n\u003cli\u003eAll tubes are tested on a calibrated Hickok 539C, Maxi-Matcher, E-Tracer or other industry standard tube analyzers\u003c\/li\u003e\n\u003cli\u003e\u003cstrong\u003eTubes are guaranteed for one year and can be returned within 30 days\u003c\/strong\u003e\u003c\/li\u003e\n\u003cli\u003ePreamp tubes matched by gain and mutual conductance (Gm)\u003c\/li\u003e\n\u003cli\u003ePower tubes matched by mA and Gm\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eDon’t forget to email\u003cspan\u003e \u003c\/span\u003e\u003ca href=\"mailto:Support@fuzzaudio.com\" target=\"_blank\"\u003eSupport@fuzzaudio.com\u003c\/a\u003e\u003cspan\u003e \u003c\/span\u003eor reach out to us via chat if you need help picking out valves for your device.\u003c\/p\u003e\n\u003cul\u003e\u003c\/ul\u003e","brand":"Fuzz Audio","offers":[{"title":"NOS Clear Top","offer_id":39514969735203,"sku":"","price":50.0,"currency_code":"USD","in_stock":false},{"title":"Test NOS Clear Top","offer_id":39514969767971,"sku":"","price":35.0,"currency_code":"USD","in_stock":true},{"title":"NOS Black Plate","offer_id":39514969800739,"sku":"","price":60.0,"currency_code":"USD","in_stock":false},{"title":"Test NOS Black Plate","offer_id":39514969833507,"sku":"","price":50.0,"currency_code":"USD","in_stock":false},{"title":"NOS Long Grey Plate","offer_id":39514969866275,"sku":"","price":40.0,"currency_code":"USD","in_stock":true},{"title":"Test NOS Long Grey Plate","offer_id":39514969899043,"sku":"","price":30.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0275\/0699\/9331\/products\/rca-12au7-plate-options-nos-tubes-fuzz-audio-nos-black-plate-541153.jpg?v=1715476816"},{"product_id":"ge-5u4gb","title":"GE 5U4GB Rectifier Tube","description":"\u003cdiv data-is-intersecting=\"true\" data-turn-id-container=\"request-WEB:423c9f11-fe08-4f62-a83f-28460e7cea7d-0\" class=\"\"\u003e\n\u003csection data-turn=\"assistant\" data-scroll-anchor=\"false\" data-testid=\"conversation-turn-2\" data-turn-id=\"request-WEB:423c9f11-fe08-4f62-a83f-28460e7cea7d-0\" dir=\"auto\" class=\"text-token-text-primary w-full focus:outline-none [--shadow-height:45px] has-data-writing-block:pointer-events-none has-data-writing-block:-mt-(--shadow-height) has-data-writing-block:pt-(--shadow-height) [\u0026amp;:has([data-writing-block])\u0026gt;*]:pointer-events-auto R6Vx5W_threadScrollVars scroll-mb-[calc(var(--scroll-root-safe-area-inset-bottom,0px)+var(--thread-response-height))] scroll-mt-[calc(var(--header-height)+min(200px,max(70px,20svh)))]\"\u003e\n\u003cdiv class=\"text-base my-auto mx-auto pb-10 [--thread-content-margin:var(--thread-content-margin-xs,calc(var(--spacing)*4))] @w-sm\/main:[--thread-content-margin:var(--thread-content-margin-sm,calc(var(--spacing)*6))] @w-lg\/main:[--thread-content-margin:var(--thread-content-margin-lg,calc(var(--spacing)*16))] px-(--thread-content-margin)\"\u003e\n\u003cdiv class=\"[--thread-content-max-width:40rem] @w-lg\/main:[--thread-content-max-width:48rem] mx-auto max-w-(--thread-content-max-width) flex-1 group\/turn-messages focus-visible:outline-hidden relative flex w-full min-w-0 flex-col agent-turn\"\u003e\n\u003cdiv class=\"flex max-w-full flex-col gap-4 grow\"\u003e\n\u003cdiv data-turn-start-message=\"true\" class=\"min-h-8 text-message relative flex w-full flex-col items-end gap-2 text-start break-words whitespace-normal outline-none keyboard-focused:focus-ring [.text-message+\u0026amp;]:mt-1\" data-message-model-slug=\"gpt-5-5\" dir=\"auto\" data-message-id=\"35dbe07a-faeb-44f0-bac3-70e6d550694a\" data-message-author-role=\"assistant\" tabindex=\"0\"\u003e\n\u003cdiv class=\"flex w-full flex-col gap-1 empty:hidden\"\u003e\n\u003cdiv class=\"markdown prose dark:prose-invert wrap-break-word w-full dark markdown-new-styling\"\u003e\n\u003cp data-end=\"87\" data-start=\"0\"\u003eThe GE 5U4GB are some of the best American-made rectifier tubes ever produced.\u003c\/p\u003e\n\u003cp data-end=\"419\" data-start=\"89\"\u003eBuilt during the golden age of American tube manufacturing, these vintage GE rectifiers are known for their reliability, long life, and strong, steady power delivery. Whether you’re restoring vintage hi-fi gear, running a classic guitar amp, or replacing a tired modern production rectifier, a real vintage GE 5U4GB is hard to beat.\u003c\/p\u003e\n\u003cp data-end=\"732\" data-start=\"588\"\u003eExpect smooth response, dependable performance, and the kind of durability that made GE one of the most respected tube manufacturers in America.\u003c\/p\u003e\n\u003cp data-end=\"846\" data-start=\"734\"\u003eEvery tube is thoroughly tested, verified for proper operation, and backed by the Fuzz Audio one-year guarantee.\u003c\/p\u003e\n\u003cp data-is-only-node=\"\" data-is-last-node=\"\" data-end=\"880\" data-start=\"848\"\u003e\u003cstrong data-is-last-node=\"\" data-end=\"880\" data-start=\"848\"\u003eTested. Matched. Guaranteed.\u003c\/strong\u003e\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/section\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"pointer-events-none -mt-px h-px translate-y-[calc(var(--scroll-root-safe-area-inset-bottom)-14*var(--spacing))]\" aria-hidden=\"true\"\u003e\u003cbr\u003e\u003c\/div\u003e\n\u003ch3\u003e\u003cstrong\u003eNeed help deciding what tubes are best for you?\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cp\u003eUse our\u003cspan\u003e \u003c\/span\u003e\u003ca href=\"https:\/\/fuzzaudio.com\/vacuum-tubes-plate-cheat-sheet-fuzz-audio\" target=\"_blank\"\u003eplate cheat sheet\u003c\/a\u003e\u003cspan\u003e \u003c\/span\u003eand\u003cspan\u003e \u003c\/span\u003e\u003ca href=\"https:\/\/fuzzaudio.com\/category\/tube-buyers-guide\" target=\"_blank\"\u003evacuum tube buyers guide\u003c\/a\u003e\u003cspan\u003e \u003c\/span\u003eto determine which tubes are best for you. Likewise, you are welcome to reach out to us directly at\u003cspan\u003e \u003c\/span\u003e\u003ca href=\"mailto:Support@FuzzAudio.com\" target=\"_blank\"\u003eSupport@FuzzAudio.com\u003c\/a\u003e\u003cspan\u003e \u003c\/span\u003eor by using our chat located on our shop page if you have further questions.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eNOS vs. ANOS vs. Test NOS\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eThese designations are strictly used to describe the cosmetic condition of our tubes. All tubes we sell test identically, come with 100% life and are guaranteed to work in your device!\u003c\/p\u003e\n\u003cp\u003eIf you are picky about owning an original box or wanting a specific logo please reach out to us\u003cspan\u003e \u003c\/span\u003e\u003cu\u003ebefore purchasing.\u003c\/u\u003e\u003c\/p\u003e\n\u003col\u003e\n\u003cli\u003e\n\u003cstrong\u003eNOS (New Old Stock) Tubes-\u003cspan\u003e \u003c\/span\u003e\u003c\/strong\u003eare 100% brand new vintage tubes in mint cosmetic condition with show zero signs of use. You should expect a legible logo and clean straight pins. An original box is likely but not guaranteed. \u003c\/li\u003e\n\u003c\/ol\u003e\n\u003col start=\"2\"\u003e\n\u003cli\u003e\n\u003cstrong\u003e\u003c\/strong\u003e\u003cstrong\u003eANOS Tubes-\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eotherwise known as “almost new old stock” tubes are basically new, but may show slight signs of use in cosmetic condition, such as a missing logo or slightly bent pins. An original box is possible but unlikely.\u003cstrong\u003e \u003c\/strong\u003e\n\u003c\/li\u003e\n\u003c\/ol\u003e\n\u003col start=\"3\"\u003e\n\u003cli\u003e\n\u003cstrong\u003eTest NOS Tubes-\u003cspan\u003e \u003c\/span\u003e\u003c\/strong\u003eare used but still operating to specification with 100% life. These tubes are equal in function to NOS valves, yet they cost considerably less because they have cosmetic blemishes. If you plan to disappear your tubes into the back of an amplifier or do not care what the tubes look like, then this is cost effective choice. Blemishes and cosmetic imperfections do not affect tone…\u003c\/li\u003e\n\u003c\/ol\u003e\n\u003cp\u003e\u003cstrong\u003eLogos:\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eVintage tubes have a wide variety of logos printed on them. It is not uncommon to see a Mullard made tube with an RCA or GE logo, or a GE made tube with a Mullard logo. Your tube may come with a logo such are Heath Kit, Baldwin, Fisher, Hammond, Magnavox, Fender, Gibson, Silvertone, etc. but the true manufacturer of that tube will be correct to your order. If you are looking for a specific logo please reach out before purchase.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003e\u003c\/strong\u003e\u003cstrong\u003eOur Standards:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eAll tubes are tested for \u003cstrong\u003emicrophonics \u003c\/strong\u003eand are guaranteed to work in sensitive audio applications\u003c\/li\u003e\n\u003cli\u003eAll tubes sold are guaranteed to have strong (to spec) NOS test scores with 100% life\u003c\/li\u003e\n\u003cli\u003eAll tubes are tested on a calibrated Hickok 539C, Maxi-Matcher, E-Tracer or other industry standard tube analyzers\u003c\/li\u003e\n\u003cli\u003e\u003cstrong\u003eTubes are guaranteed for one year and can be returned within 30 days\u003c\/strong\u003e\u003c\/li\u003e\n\u003cli\u003ePreamp tubes matched by gain and mutual conductance (Gm)\u003c\/li\u003e\n\u003cli\u003ePower tubes matched by mA and Gm\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eDon’t forget to email\u003cspan\u003e \u003c\/span\u003e\u003ca href=\"mailto:Support@fuzzaudio.com\" target=\"_blank\"\u003eSupport@fuzzaudio.com\u003c\/a\u003e\u003cspan\u003e \u003c\/span\u003eor reach out to us via chat if you need help picking out valves for your device.\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e","brand":"Fuzz Audio","offers":[{"title":"NOS","offer_id":39792274440227,"sku":"","price":50.0,"currency_code":"USD","in_stock":true},{"title":"Tests NOS","offer_id":39792274472995,"sku":"","price":35.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0275\/0699\/9331\/files\/GE_5U4GB_Vintage_NOS_Vacuum_Tube.jpg?v=1778197313"},{"product_id":"premium-12ax7-ecc83-sampler-set-including-1-mullard-1-telefunken-smooth-plate-1-rca-black-plate","title":"Premium 12AX7\/ECC83 Sample  (Mullard, Telefunken, RCA)","description":"\u003cp\u003eThese 3 12AX7's are considered the best vintage vacuum tubes ever made.\u003c\/p\u003e\n\u003cp\u003eSet Includes:\u003c\/p\u003e\n\u003cp\u003e1 NOS Telefunken 12AX7\/ECC83 Smooth Plate Diamond Bottom\u003c\/p\u003e\n\u003cp\u003e1 NOS Mullard (Blackburn factory if in stock) 12AX7\/ECC83 Grey Ribbed Plate\u003c\/p\u003e\n\u003cp\u003eand\u003c\/p\u003e\n\u003cp\u003eChoose between 1 RCA Black or Long Grey Plates!\u003cbr\u003e\u003c\/p\u003e\n\u003cmeta charset=\"utf-8\"\u003e\n\u003ch3\u003e\u003cstrong\u003eNeed help deciding what tubes are best for you?\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cp\u003eUse our\u003cspan\u003e \u003c\/span\u003e\u003ca href=\"https:\/\/fuzzaudio.com\/vacuum-tubes-plate-cheat-sheet-fuzz-audio\" target=\"_blank\" data-mce-href=\"https:\/\/fuzzaudio.com\/vacuum-tubes-plate-cheat-sheet-fuzz-audio\"\u003eplate cheat sheet\u003c\/a\u003e\u003cspan\u003e \u003c\/span\u003eand\u003cspan\u003e \u003c\/span\u003e\u003ca href=\"https:\/\/fuzzaudio.com\/category\/tube-buyers-guide\" target=\"_blank\" data-mce-href=\"https:\/\/fuzzaudio.com\/category\/tube-buyers-guide\"\u003evacuum tube buyers guide\u003c\/a\u003e\u003cspan\u003e \u003c\/span\u003eto determine which tubes are best for you. Likewise, you are welcome to reach out to us directly at\u003cspan\u003e \u003c\/span\u003e\u003ca href=\"mailto:Support@FuzzAudio.com\" target=\"_blank\" data-mce-href=\"mailto:Support@FuzzAudio.com\"\u003eSupport@FuzzAudio.com\u003c\/a\u003e\u003cspan\u003e \u003c\/span\u003eor by using our chat located on our shop page if you have further questions.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eNOS vs. ANOS vs. Test NOS\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eThese designations are strictly used to describe the cosmetic condition of our tubes. All tubes we sell test identically, come with 100% life and are guaranteed to work in your device!\u003c\/p\u003e\n\u003cp\u003eIf you are picky about owning an original box or wanting a specific logo please reach out to us\u003cspan\u003e \u003c\/span\u003e\u003cu\u003ebefore purchasing.\u003c\/u\u003e\u003c\/p\u003e\n\u003col\u003e\n\u003cli\u003e\n\u003cstrong\u003eNOS (New Old Stock) Tubes-\u003cspan\u003e \u003c\/span\u003e\u003c\/strong\u003eare 100% brand new vintage tubes in mint cosmetic condition with show zero signs of use. You should expect a legible logo and clean straight pins. An original box is likely but not guaranteed. \u003c\/li\u003e\n\u003c\/ol\u003e\n\u003col start=\"2\"\u003e\n\u003cli\u003e\n\u003cstrong\u003e\u003c\/strong\u003e\u003cstrong\u003eANOS Tubes-\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eotherwise known as “almost new old stock” tubes are basically new, but may show slight signs of use in cosmetic condition, such as a missing logo or slightly bent pins. An original box is possible but unlikely.\u003cstrong\u003e \u003c\/strong\u003e\n\u003c\/li\u003e\n\u003c\/ol\u003e\n\u003col start=\"3\"\u003e\n\u003cli\u003e\n\u003cstrong\u003eTest NOS Tubes-\u003cspan\u003e \u003c\/span\u003e\u003c\/strong\u003eare used but still operating to specification with 100% life. These tubes are equal in function to NOS valves, yet they cost considerably less because they have cosmetic blemishes. If you plan to disappear your tubes into the back of an amplifier or do not care what the tubes look like, then this is cost effective choice. Blemishes and cosmetic imperfections do not affect tone…\u003c\/li\u003e\n\u003c\/ol\u003e\n\u003cp\u003e\u003cstrong\u003eLogos:\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eVintage tubes have a wide variety of logos printed on them. It is not uncommon to see a Mullard made tube with an RCA or GE logo, or a GE made tube with a Mullard logo. Your tube may come with a logo such are Heath Kit, Baldwin, Fisher, Hammond, Magnavox, Fender, Gibson, Silvertone, etc. but the true manufacturer of that tube will be correct to your order. If you are looking for a specific logo please reach out before purchase.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003e\u003c\/strong\u003e\u003cstrong\u003eOur Standards:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eAll tubes are tested for \u003cstrong\u003emicrophonics \u003c\/strong\u003eand are guaranteed to work in sensitive audio applications\u003c\/li\u003e\n\u003cli\u003eAll tubes sold are guaranteed to have strong (to spec) NOS test scores with 100% life\u003c\/li\u003e\n\u003cli\u003eAll tubes are tested on a calibrated Hickok 539C, Maxi-Matcher, E-Tracer or other industry standard tube analyzers\u003c\/li\u003e\n\u003cli\u003e\u003cstrong\u003eTubes are guaranteed for one year and can be returned within 30 days\u003c\/strong\u003e\u003c\/li\u003e\n\u003cli\u003ePreamp tubes matched by gain and mutual conductance (Gm)\u003c\/li\u003e\n\u003cli\u003ePower tubes matched by mA and Gm\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eDon’t forget to email\u003cspan\u003e \u003c\/span\u003e\u003ca href=\"mailto:Support@fuzzaudio.com\" target=\"_blank\" data-mce-href=\"mailto:Support@fuzzaudio.com\"\u003eSupport@fuzzaudio.com\u003c\/a\u003e\u003cspan\u003e \u003c\/span\u003eor reach out to us via chat if you need help picking out valves for your device.\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e","brand":"Fuzz Audio","offers":[{"title":"NOS \/ RCA Black Plate 12AX7","offer_id":39858674532387,"sku":"","price":400.0,"currency_code":"USD","in_stock":true},{"title":"NOS \/ RCA Long Grey Plate 12AX7","offer_id":39858674565155,"sku":"","price":350.0,"currency_code":"USD","in_stock":true},{"title":"Tests NOS \/ RCA Black Plate 12AX7","offer_id":39858674597923,"sku":"","price":370.0,"currency_code":"USD","in_stock":true},{"title":"Tests NOS \/ RCA Long Grey Plate 12AX7","offer_id":39858674630691,"sku":"","price":320.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0275\/0699\/9331\/products\/premium-12ax7ecc83-sample-mullard-telefunken-rca-nos-tubes-fuzz-audio-737074.jpg?v=1715477760"},{"product_id":"rca-5y3gt","title":"RCA 5Y3GT","description":"\u003cp data-end=\"84\" data-start=\"42\"\u003e\u003cstrong data-end=\"84\" data-start=\"42\"\u003eRCA 5Y3GT Rectifier Tube (NOS Vintage)\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp data-end=\"390\" data-start=\"86\"\u003eThe \u003cstrong data-end=\"103\" data-start=\"90\"\u003eRCA 5Y3GT\u003c\/strong\u003e is one of the most iconic rectifier tubes ever made, and a cornerstone of classic American amp tone. Manufactured by \u003cstrong data-end=\"262\" data-start=\"221\"\u003e\u003cspan class=\"hover:entity-accent entity-underline inline cursor-pointer align-baseline\"\u003e\u003cspan class=\"whitespace-normal\"\u003eRCA\u003c\/span\u003e\u003c\/span\u003e\u003c\/strong\u003e in the USA, this tube helped define the feel and response of early Fender tweed amplifiers and countless vintage hi-fi designs.\u003c\/p\u003e\n\u003cp data-end=\"806\" data-start=\"392\"\u003eIn guitar amps, the RCA 5Y3GT is known for its smooth voltage sag, soft attack, and natural compression. It gives small amps that elastic, touch-responsive feel players associate with true vintage tweeds—notes bloom, chords breathe, and the amp feels alive under your fingers. Compared to later or stiffer rectifiers, it delivers a warmer, more forgiving response that’s perfect for blues, roots, and classic rock.\u003c\/p\u003e\n\u003cp data-end=\"1059\" data-start=\"808\"\u003eIn hi-fi and restoration work, the RCA 5Y3GT is valued for its quiet operation, consistency, and long service life. RCA’s materials, cathode coatings, and quality control from this era are a big reason these tubes are still going strong decades later.\u003c\/p\u003e\n\u003cp data-end=\"1087\" data-start=\"1061\"\u003e\u003cstrong data-end=\"1087\" data-start=\"1061\"\u003eWhy the RCA stands out\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul data-end=\"1276\" data-start=\"1088\"\u003e\n\u003cli data-end=\"1127\" data-start=\"1088\"\u003e\n\u003cp data-end=\"1127\" data-start=\"1090\"\u003eClassic vintage sag and compression\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-end=\"1176\" data-start=\"1128\"\u003e\n\u003cp data-end=\"1176\" data-start=\"1130\"\u003eDefines early Fender tweed feel and response\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-end=\"1226\" data-start=\"1177\"\u003e\n\u003cp data-end=\"1226\" data-start=\"1179\"\u003eExtremely durable, long-life NOS construction\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-end=\"1276\" data-start=\"1227\"\u003e\n\u003cp data-end=\"1276\" data-start=\"1229\"\u003eMade in the USA with period-correct materials\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp data-end=\"1301\" data-start=\"1278\"\u003e\u003cstrong data-end=\"1301\" data-start=\"1278\"\u003eCommon applications\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul data-end=\"1449\" data-start=\"1302\"\u003e\n\u003cli data-end=\"1365\" data-start=\"1302\"\u003e\n\u003cp data-end=\"1365\" data-start=\"1304\"\u003eFender Champ, Princeton, Deluxe, and other tweed-style amps\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-end=\"1411\" data-start=\"1366\"\u003e\n\u003cp data-end=\"1411\" data-start=\"1368\"\u003eVintage hi-fi amplifiers and restorations\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-end=\"1449\" data-start=\"1412\"\u003e\n\u003cp data-end=\"1449\" data-start=\"1414\"\u003ePeriod-correct builds and repairs\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp data-is-only-node=\"\" data-is-last-node=\"\" data-end=\"1607\" data-start=\"1451\"\u003eIf you want the most authentic vintage rectifier experience—the sound and feel players fell in love with in the ’50s—the \u003cstrong data-end=\"1585\" data-start=\"1572\"\u003eRCA 5Y3GT\u003c\/strong\u003e is the gold standard.\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e","brand":"Fuzz Audio","offers":[{"title":"NOS","offer_id":40203518050339,"sku":"","price":60.0,"currency_code":"USD","in_stock":false},{"title":"Tests NOS","offer_id":40203518083107,"sku":"","price":40.0,"currency_code":"USD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0275\/0699\/9331\/products\/rca-5y3gt-nos-tubes-fuzz-audio-146458.jpg?v=1715467343"},{"product_id":"sylvania-5u4gb-black-plate-rectifier","title":"Sylvania 5U4GB","description":"\u003cp\u003eSylvania 5U4GB Black Plate Rectifier Vintage Vacuum Tube\u003c\/p\u003e\n\u003cp\u003eExcellent rectifier option for any 5U4GB application. \u003c\/p\u003e\n\u003cp\u003eSylvania NOS tubes are hardy and can last a lifetime!\u003c\/p\u003e\n\u003cp\u003eWe do not have original boxes for all vintage tubes. If you require an original box, we will do our best to supply one.\u003cem\u003e \u003c\/em\u003e\u003cem\u003eContrary to popular belief, roughly 70% of vacuum tubes did not come from the manufacturer individually boxed. Most tubes were manufactured for industrial use and were shipped and stored in large cardboard boxes with lipstick dividers. \u003c\/em\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cem\u003eNote: Pre-amp tubes do not need to be matched for 90+% of applications.\u003c\/em\u003e\u003c\/p\u003e\n\u003cp\u003eAll of our tubes are thoroughly tested. No tube tester is perfect, we often test tubes on several different industry grade testers to ensure you get a quality valve. \u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eWe guarantee your tube to be 100% operational! If it is not we will give you a full refund.\u003c\/strong\u003e\u003c\/p\u003e\n\u003ch3\u003e\u003cstrong\u003eNeed help deciding what tubes are best for you?\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cp\u003eUse our\u003cspan\u003e \u003c\/span\u003e\u003ca href=\"https:\/\/fuzzaudio.com\/vacuum-tubes-plate-cheat-sheet-fuzz-audio\" target=\"_blank\"\u003eplate cheat sheet\u003c\/a\u003e\u003cspan\u003e \u003c\/span\u003eand\u003cspan\u003e \u003c\/span\u003e\u003ca href=\"https:\/\/fuzzaudio.com\/category\/tube-buyers-guide\" target=\"_blank\"\u003evacuum tube buyers guide\u003c\/a\u003e\u003cspan\u003e \u003c\/span\u003eto determine which tubes are best for you. Likewise, you are welcome to reach out to us directly at\u003cspan\u003e \u003c\/span\u003e\u003ca href=\"mailto:Support@FuzzAudio.com\" target=\"_blank\"\u003eSupport@FuzzAudio.com\u003c\/a\u003e\u003cspan\u003e \u003c\/span\u003eor by using our chat located on our shop page if you have further questions.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eNOS vs. ANOS vs. Test NOS\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eThese designations are strictly used to describe the cosmetic condition of our tubes. All tubes we sell test identically, come with 100% life and are guaranteed to work in your device!\u003c\/p\u003e\n\u003cp\u003eIf you are picky about owning an original box or wanting a specific logo please reach out to us\u003cspan\u003e \u003c\/span\u003e\u003cu\u003ebefore purchasing.\u003c\/u\u003e\u003c\/p\u003e\n\u003col\u003e\n\u003cli\u003e\n\u003cstrong\u003eNOS (New Old Stock) Tubes-\u003cspan\u003e \u003c\/span\u003e\u003c\/strong\u003eare 100% brand new vintage tubes in mint cosmetic condition with show zero signs of use. You should expect a legible logo and clean straight pins. An original box is likely but not guaranteed. \u003c\/li\u003e\n\u003c\/ol\u003e\n\u003col start=\"2\"\u003e\n\u003cli\u003e\n\u003cstrong\u003e\u003c\/strong\u003e\u003cstrong\u003eANOS Tubes-\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eotherwise known as “almost new old stock” tubes are basically new, but may show slight signs of use in cosmetic condition, such as a missing logo or slightly bent pins. An original box is possible but unlikely.\u003cstrong\u003e \u003c\/strong\u003e\n\u003c\/li\u003e\n\u003c\/ol\u003e\n\u003col start=\"3\"\u003e\n\u003cli\u003e\n\u003cstrong\u003eTest NOS Tubes-\u003cspan\u003e \u003c\/span\u003e\u003c\/strong\u003eare used but still operating to specification with 100% life. These tubes are equal in function to NOS valves, yet they cost considerably less because they have cosmetic blemishes. If you plan to disappear your tubes into the back of an amplifier or do not care what the tubes look like, then this is cost effective choice. Blemishes and cosmetic imperfections do not affect tone…\u003c\/li\u003e\n\u003c\/ol\u003e\n\u003cp\u003e\u003cstrong\u003eLogos:\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eVintage tubes were have a wide variety of logos printed on them. It is not uncommon to see a Mullard made tube with an RCA or GE logo, or a GE made tube with a Mullard logo. Your tube may come with a logo such are Heath Kit, Baldwin, Fisher, Hammond, Magnavox, Fender, Gibson, Silvertone, etc. but the true manufacturer of that tube will be correct to your order. If you are looking for a specific logo please reach out before purchase.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003e\u003c\/strong\u003e\u003cstrong\u003eOur Standards:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eAll tubes are tested for \u003cstrong\u003emicrophonics \u003c\/strong\u003eand are guaranteed to work in sensitive audio applications\u003c\/li\u003e\n\u003cli\u003eAll tubes sold are guaranteed to have strong (to spec) NOS test scores with 100% life\u003c\/li\u003e\n\u003cli\u003eAll tubes are tested on a calibrated Hickok 539C, Maxi-Matcher, E-Tracer or other industry standard tube analyzers\u003c\/li\u003e\n\u003cli\u003e\u003cstrong\u003eTubes are guaranteed for one year and can be returned within 30 days\u003c\/strong\u003e\u003c\/li\u003e\n\u003cli\u003ePreamp tubes matched by gain and mutual conductance (Gm)\u003c\/li\u003e\n\u003cli\u003ePower tubes matched by mA and Gm\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eDon’t forget to email\u003cspan\u003e \u003c\/span\u003e\u003ca href=\"mailto:Support@fuzzaudio.com\"\u003eSupport@fuzzaudio.com\u003c\/a\u003e\u003cspan\u003e \u003c\/span\u003eor reach out to us via chat if you need help picking out valves for your device.\u003c\/p\u003e","brand":"Fuzz Audio","offers":[{"title":"Default Title","offer_id":31563515691043,"sku":"","price":18.89,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0275\/0699\/9331\/products\/sylvania-5u4gb-nos-tubes-fuzz-audio-415601.jpg?v=1715464672"},{"product_id":"ge-12ax7","title":"GE 12AX7's (Plate Options)","description":"\u003ch1\u003eGE 12AX7\/ECC83 Grey Plate NOS Vintage Vacuum Tube\u003c\/h1\u003e\n\u003cp\u003e\u003ciframe title=\"YouTube video player\" src=\"https:\/\/www.youtube.com\/embed\/8V3BB_nqxVU\" height=\"315\" width=\"560\"\u003e\u003c\/iframe\u003e\u003cbr\u003e\u003c\/p\u003e\n\u003cp\u003eThe GE 12AX7 is a classic pre amp tube and a great stock option for anyone trying to restore a Fender or Gibson amp back to its original glory. They are known for their quintessential American tone, highlighting bass and treble.\u003c\/p\u003e\n\u003ch3\u003e\u003cstrong\u003eNeed help deciding what tubes are best for you?\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cp\u003eUse our\u003cspan\u003e \u003c\/span\u003e\u003ca href=\"https:\/\/fuzzaudio.com\/vacuum-tubes-plate-cheat-sheet-fuzz-audio\" target=\"_blank\"\u003eplate cheat sheet\u003c\/a\u003e\u003cspan\u003e \u003c\/span\u003eand\u003cspan\u003e \u003c\/span\u003e\u003ca href=\"https:\/\/fuzzaudio.com\/category\/tube-buyers-guide\" target=\"_blank\"\u003evacuum tube buyers guide\u003c\/a\u003e\u003cspan\u003e \u003c\/span\u003eto determine which tubes are best for you. Likewise, you are welcome to reach out to us directly at\u003cspan\u003e \u003c\/span\u003e\u003ca href=\"mailto:Support@FuzzAudio.com\" target=\"_blank\"\u003eSupport@FuzzAudio.com\u003c\/a\u003e\u003cspan\u003e \u003c\/span\u003eor by using our chat located on our shop page if you have further questions.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003e\u003c\/strong\u003e\u003cstrong\u003eOur Standards:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eAll tubes are tested for \u003cstrong\u003emicrophonics \u003c\/strong\u003eand are guaranteed to work in sensitive audio applications\u003c\/li\u003e\n\u003cli\u003eAll tubes sold are guaranteed to have strong (to spec) NOS test scores with 100% life\u003c\/li\u003e\n\u003cli\u003eAll tubes are tested on a calibrated Hickok 539C, Maxi-Matcher, E-Tracer or other industry standard tube analyzers\u003c\/li\u003e\n\u003cli\u003e\u003cstrong\u003eTubes are guaranteed for one year and can be returned within 30 days\u003c\/strong\u003e\u003c\/li\u003e\n\u003cli\u003ePreamp tubes matched by gain and mutual conductance (Gm)\u003c\/li\u003e\n\u003cli\u003ePower tubes matched by mA and Gm\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eDon’t forget to email\u003cspan\u003e \u003c\/span\u003e\u003ca href=\"mailto:Support@fuzzaudio.com\"\u003eSupport@fuzzaudio.com\u003c\/a\u003e\u003cspan\u003e \u003c\/span\u003eor reach out to us via chat if you need help picking out valves for your device.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eLogos:\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eVintage tubes have a wide variety of logos printed on them. It is not uncommon to see a Mullard made tube with an RCA or GE logo, or a GE made tube with a Mullard logo. Your tube may come with a logo such are Heath Kit, Baldwin, Fisher, Hammond, Magnavox, Fender, Gibson, Silvertone, etc. but the true manufacturer of that tube will be correct to your order. If you are looking for a specific logo please reach out before purchase.\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e","brand":"Fuzz Audio","offers":[{"title":"Short Plate \/ NOS","offer_id":39436719063075,"sku":"","price":60.0,"currency_code":"USD","in_stock":true},{"title":"Short Plate \/ Tests NOS","offer_id":40917789245475,"sku":null,"price":50.0,"currency_code":"USD","in_stock":true},{"title":"Long Plate \/ NOS","offer_id":40917789278243,"sku":null,"price":65.0,"currency_code":"USD","in_stock":true},{"title":"Long Plate \/ Tests NOS","offer_id":40917789311011,"sku":null,"price":50.0,"currency_code":"USD","in_stock":true},{"title":"Galvanized Plate \/ NOS","offer_id":40917789409315,"sku":null,"price":125.0,"currency_code":"USD","in_stock":true},{"title":"Galvanized Plate \/ Tests NOS","offer_id":40917789442083,"sku":null,"price":95.0,"currency_code":"USD","in_stock":true},{"title":"Black Plate \/ NOS","offer_id":40917789343779,"sku":null,"price":125.0,"currency_code":"USD","in_stock":false},{"title":"Black Plate \/ Tests NOS","offer_id":40917789376547,"sku":null,"price":95.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0275\/0699\/9331\/files\/GE_12AX7_Vintage_Guitar_and_HIfi_Tubes_Fuzz_Audio.jpg?v=1771957767"},{"product_id":"us-made-12at7-vintage-preamp-tube","title":"USA 12AT7 Collection","description":"\u003cdiv class=\"flex-1 overflow-hidden\"\u003e\n\u003cdiv class=\"react-scroll-to-bottom--css-koiho-79elbk h-full\"\u003e\n\u003cdiv class=\"react-scroll-to-bottom--css-koiho-1n7m0yu\"\u003e\n\u003cdiv class=\"flex flex-col pb-9 text-sm\"\u003e\n\u003cdiv data-testid=\"conversation-turn-43\" class=\"w-full text-token-text-primary\"\u003e\n\u003cdiv class=\"px-4 py-2 justify-center text-base md:gap-6 m-auto\"\u003e\n\u003cdiv class=\"flex flex-1 text-base mx-auto gap-3 md:px-5 lg:px-1 xl:px-5 md:max-w-3xl lg:max-w-[40rem] xl:max-w-[48rem] group final-completion\"\u003e\n\u003cdiv class=\"relative flex w-full flex-col lg:w-[calc(100%-115px)] agent-turn\"\u003e\n\u003cdiv class=\"flex-col gap-1 md:gap-3\"\u003e\n\u003cdiv class=\"flex flex-grow flex-col max-w-full\"\u003e\n\u003cdiv class=\"min-h-[20px] text-message flex flex-col items-start gap-3 whitespace-pre-wrap break-words [.text-message+\u0026amp;]:mt-5 overflow-x-auto\" data-message-id=\"5c2f8d47-6a47-4355-a649-83d6c16bb720\" data-message-author-role=\"assistant\"\u003e\n\u003cdiv class=\"markdown prose w-full break-words dark:prose-invert dark\"\u003e\n\u003ch1\u003eUSA 12AT7 Collection Vintage NOS Vacuum Tubes\u003c\/h1\u003e\n\u003cp\u003eElevate your audio experience with Fuzz Audio's USA 12AT7 collection, a curated selection of American-made tubes that promise to enhance both tone and performance at an affordable price. Our range offers a variety of sonic characteristics to suit any preference:\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eGE:\u003c\/strong\u003e Delivers clarity with a nicely defined top end, offering a balanced and responsive audio experience.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSylvania:\u003c\/strong\u003e Known for its warmth and a well-defined, responsive low end, perfect for adding depth.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eRaytheon:\u003c\/strong\u003e Provides a warm tone enriched with a robust low end, ensuring a full-bodied sound.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eTung-Sol:\u003c\/strong\u003e A harmonious blend of warmth with balanced low and high ends, ideal for a versatile setup.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eRCA Grey Plate:\u003c\/strong\u003e Offers a warm, balanced, and defined sound, suitable for nuanced audio delivery.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eRCA Black Plate:\u003c\/strong\u003e Known for its excellent low-end response, this tube provides a warm and robustly full tone.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eWhether you're a guitarist or an audiophile, our collection outshines modern tubes in both longevity and sound quality, ensuring a superior listening experience. \u003c\/p\u003e\n\u003cp\u003eCheck out our blog the \u003ca href=\"https:\/\/fuzzaudio.com\/how-to-pick-the-best-12at7-tube-for-your-amplifier\"\u003ebest 12AT7 tubes for your amp!\u003c\/a\u003e\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"w-full pt-2 md:pt-0 dark:border-white\/20 md:border-transparent md:dark:border-transparent md:w-[calc(100%-.5rem)]\"\u003e\u003cform class=\"stretch mx-2 flex flex-row gap-3 last:mb-2 md:mx-4 md:last:mb-6 lg:mx-auto lg:max-w-2xl xl:max-w-3xl\"\u003e\n\u003cdiv class=\"relative flex h-full flex-1 items-stretch md:flex-col\"\u003e\n\u003cdiv class=\"flex w-full items-center\"\u003e\u003cbr\u003e\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/form\u003e\u003c\/div\u003e\n\u003ch3\u003e\u003cstrong\u003eNeed help deciding what tubes are best for you?\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cp\u003eUse our\u003cspan\u003e \u003c\/span\u003e\u003ca href=\"https:\/\/fuzzaudio.com\/vacuum-tubes-plate-cheat-sheet-fuzz-audio\" target=\"_blank\"\u003eplate cheat sheet\u003c\/a\u003e\u003cspan\u003e \u003c\/span\u003eand\u003cspan\u003e \u003c\/span\u003e\u003ca href=\"https:\/\/fuzzaudio.com\/category\/tube-buyers-guide\" target=\"_blank\"\u003evacuum tube buyers guide\u003c\/a\u003e\u003cspan\u003e \u003c\/span\u003eto determine which tubes are best for you. Likewise, you are welcome to reach out to us directly at\u003cspan\u003e \u003c\/span\u003e\u003ca href=\"mailto:Support@FuzzAudio.com\" target=\"_blank\"\u003eSupport@FuzzAudio.com\u003c\/a\u003e\u003cspan\u003e \u003c\/span\u003eor by using our chat located on our shop page if you have further questions.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eNOS vs. ANOS vs. Test NOS\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eThese designations are strictly used to describe the cosmetic condition of our tubes. All tubes we sell test identically, come with 100% life and are guaranteed to work in your device!\u003c\/p\u003e\n\u003cp\u003eIf you are picky about owning an original box or wanting a specific logo please reach out to us\u003cspan\u003e \u003c\/span\u003e\u003cu\u003ebefore purchasing.\u003c\/u\u003e\u003c\/p\u003e\n\u003col\u003e\n\u003cli\u003e\n\u003cstrong\u003eNOS (New Old Stock) Tubes-\u003cspan\u003e \u003c\/span\u003e\u003c\/strong\u003eare 100% brand new vintage tubes in mint cosmetic condition with show zero signs of use. You should expect a legible logo and clean straight pins. An original box is likely but not guaranteed. \u003c\/li\u003e\n\u003c\/ol\u003e\n\u003col start=\"2\"\u003e\n\u003cli\u003e\n\u003cstrong\u003e\u003c\/strong\u003e\u003cstrong\u003eANOS Tubes-\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eotherwise known as “almost new old stock” tubes are basically new, but may show slight signs of use in cosmetic condition, such as a missing logo or slightly bent pins. An original box is possible but unlikely.\u003cstrong\u003e \u003c\/strong\u003e\n\u003c\/li\u003e\n\u003c\/ol\u003e\n\u003col start=\"3\"\u003e\n\u003cli\u003e\n\u003cstrong\u003eTest NOS Tubes-\u003cspan\u003e \u003c\/span\u003e\u003c\/strong\u003eare used but still operating to specification with 100% life. These tubes are equal in function to NOS valves, yet they cost considerably less because they have cosmetic blemishes. If you plan to disappear your tubes into the back of an amplifier or do not care what the tubes look like, then this is cost effective choice. Blemishes and cosmetic imperfections do not affect tone…\u003c\/li\u003e\n\u003c\/ol\u003e\n\u003cp\u003e\u003cstrong\u003eLogos:\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eVintage tubes were have a wide variety of logos printed on them. It is not uncommon to see a Mullard made tube with an RCA or GE logo, or a GE made tube with a Mullard logo. Your tube may come with a logo such are Heath Kit, Baldwin, Fisher, Hammond, Magnavox, Fender, Gibson, Silvertone, etc. but the true manufacturer of that tube will be correct to your order. If you are looking for a specific logo please reach out before purchase.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003e\u003c\/strong\u003e\u003cstrong\u003eOur Standards:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eAll tubes are tested for \u003cstrong\u003emicrophonics \u003c\/strong\u003eand are guaranteed to work in sensitive audio applications\u003c\/li\u003e\n\u003cli\u003eAll tubes sold are guaranteed to have strong (to spec) NOS test scores with 100% life\u003c\/li\u003e\n\u003cli\u003eAll tubes are tested on a calibrated Hickok 539C, Maxi-Matcher, E-Tracer or other industry standard tube analyzers\u003c\/li\u003e\n\u003cli\u003e\u003cstrong\u003eTubes are guaranteed for one year and can be returned within 30 days\u003c\/strong\u003e\u003c\/li\u003e\n\u003cli\u003ePreamp tubes matched by gain and mutual conductance (Gm)\u003c\/li\u003e\n\u003cli\u003ePower tubes matched by mA and Gm\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eDon’t forget to email\u003cspan\u003e \u003c\/span\u003e\u003ca href=\"mailto:Support@fuzzaudio.com\"\u003eSupport@fuzzaudio.com\u003c\/a\u003e\u003cspan\u003e \u003c\/span\u003eor reach out to us via chat if you need help picking out valves for your device.\u003c\/p\u003e","brand":"Fuzz Audio","offers":[{"title":"GE 12AT7 \/ NOS","offer_id":40020607139875,"sku":"GET7N","price":40.0,"currency_code":"USD","in_stock":true},{"title":"GE 12AT7 \/ Tests NOS","offer_id":40020607959075,"sku":"GET7T","price":25.0,"currency_code":"USD","in_stock":true},{"title":"GE JAN 6201 \/ NOS","offer_id":40020607991843,"sku":"GE6201N","price":65.0,"currency_code":"USD","in_stock":true},{"title":"GE JAN 6201 \/ Tests NOS","offer_id":40020608057379,"sku":"GE6201T","price":40.0,"currency_code":"USD","in_stock":true},{"title":"GE 12AT7 Black Plate \/ NOS","offer_id":40020608090147,"sku":"GET7BPN","price":50.0,"currency_code":"USD","in_stock":true},{"title":"GE 12AT7 Black Plate \/ Tests NOS","offer_id":40020608155683,"sku":"GET7NPT","price":35.0,"currency_code":"USD","in_stock":true},{"title":"Sylvania 12AT7 \/ NOS","offer_id":40020608188451,"sku":"SYLT7N","price":35.0,"currency_code":"USD","in_stock":true},{"title":"Sylvania 12AT7 \/ Tests NOS","offer_id":40020608253987,"sku":"SYLT7T","price":20.0,"currency_code":"USD","in_stock":true},{"title":"Sylvania 12AT7 Black Plate \/ NOS","offer_id":40020608286755,"sku":"SYLT7BPN","price":40.0,"currency_code":"USD","in_stock":true},{"title":"Sylvania 12AT7 Black Plate \/ Tests NOS","offer_id":40020608352291,"sku":"SYLT7BPT","price":25.0,"currency_code":"USD","in_stock":true},{"title":"RCA 12AT7 \/ NOS","offer_id":40020608385059,"sku":"RCAT7N","price":55.0,"currency_code":"USD","in_stock":true},{"title":"RCA 12AT7 \/ Tests NOS","offer_id":40020608450595,"sku":"RCAT7T","price":40.0,"currency_code":"USD","in_stock":true},{"title":"RCA 12AT7 Black Plate \/ NOS","offer_id":40020608483363,"sku":"RCAT7BPN","price":65.0,"currency_code":"USD","in_stock":false},{"title":"RCA 12AT7 Black Plate \/ Tests NOS","offer_id":40020608548899,"sku":"RCAT7BPT","price":50.0,"currency_code":"USD","in_stock":true},{"title":"RCA 6201 Black Plate \/ NOS","offer_id":40020608581667,"sku":"RCA6201BPN","price":70.0,"currency_code":"USD","in_stock":false},{"title":"RCA 6201 Black Plate \/ Tests NOS","offer_id":40020608647203,"sku":"RCA6201BPT","price":55.0,"currency_code":"USD","in_stock":false},{"title":"Raytheon 12AT7 \/ NOS","offer_id":40020608679971,"sku":"RAYT7N","price":40.0,"currency_code":"USD","in_stock":false},{"title":"Raytheon 12AT7 \/ Tests NOS","offer_id":40020608745507,"sku":"RAYT7T","price":25.0,"currency_code":"USD","in_stock":false},{"title":"Tung-Sol 12AT7 \/ NOS","offer_id":40020608778275,"sku":"SOLT7N","price":35.0,"currency_code":"USD","in_stock":true},{"title":"Tung-Sol 12AT7 \/ Tests NOS","offer_id":40020608843811,"sku":"SOLT7T","price":25.0,"currency_code":"USD","in_stock":true},{"title":"Tung-Sol 12AT7 Black Plate \/ NOS","offer_id":40020608876579,"sku":"SOLT7BPN","price":65.0,"currency_code":"USD","in_stock":false},{"title":"Tung-Sol 12AT7 Black Plate \/ Tests NOS","offer_id":40020608942115,"sku":"SOLT7BPT","price":35.0,"currency_code":"USD","in_stock":true},{"title":"Westinghouse 12AT7 \/ NOS","offer_id":40020608974883,"sku":"WEST7N","price":25.0,"currency_code":"USD","in_stock":true},{"title":"Westinghouse 12AT7 \/ Tests NOS","offer_id":40020609040419,"sku":"WEST7T","price":20.0,"currency_code":"USD","in_stock":true},{"title":"Random USA 12AT7 \/ NOS","offer_id":40020609073187,"sku":"RNDT7N","price":20.0,"currency_code":"USD","in_stock":true},{"title":"Random USA 12AT7 \/ Tests NOS","offer_id":40020609138723,"sku":"RNDT7T","price":20.0,"currency_code":"USD","in_stock":true},{"title":"Random USA 12AT7 Black Plate \/ NOS","offer_id":40020609171491,"sku":"RNDT7BPN","price":35.0,"currency_code":"USD","in_stock":true},{"title":"Random USA 12AT7 Black Plate \/ Tests NOS","offer_id":40020609237027,"sku":"RNDT7BPT","price":20.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0275\/0699\/9331\/products\/usa-12at7-nos-tubes-fuzz-audio-318066.jpg?v=1715464076"},{"product_id":"nos-rca-champ-retube-set-12ax7-6v6gt-5y3gt","title":"RCA Champ Tube Set","description":"\u003cp\u003eStock tube sets for vintage Fender amps and their clones. \u003c\/p\u003e\n\u003cp\u003eAll sets come with one RCA 12AX7, 6V6, and 5Y3GT. You choose plate types and condition. \u003c\/p\u003e\n\u003cul\u003e\u003c\/ul\u003e\n\u003cp\u003eDon’t forget to email\u003cspan\u003e \u003c\/span\u003e\u003ca href=\"mailto:Support@fuzzaudio.com\"\u003eSupport@fuzzaudio.com\u003c\/a\u003e\u003cspan\u003e \u003c\/span\u003eor reach out to us via chat if you need help picking out the right valves for your device!\u003c\/p\u003e","brand":"Fuzz Audio","offers":[{"title":"NOS Black Plate 12AX7 \/ NOS 6V6GT","offer_id":32306277679139,"sku":"","price":200.0,"currency_code":"USD","in_stock":false},{"title":"NOS Black Plate 12AX7 \/ Test NOS 6V6GT","offer_id":39593639673891,"sku":"","price":190.0,"currency_code":"USD","in_stock":true},{"title":"NOS Black Plate 12AX7 \/ NOS 6V6GTA","offer_id":32306277711907,"sku":"","price":200.0,"currency_code":"USD","in_stock":true},{"title":"NOS Black Plate 12AX7 \/ Test NOS 6V6GTY (Brown Base)","offer_id":32306277744675,"sku":"","price":200.0,"currency_code":"USD","in_stock":true},{"title":"Test NOS Black Plate 12AX7 \/ NOS 6V6GT","offer_id":39593639149603,"sku":"","price":180.0,"currency_code":"USD","in_stock":true},{"title":"Test NOS Black Plate 12AX7 \/ Test NOS 6V6GT","offer_id":39593639706659,"sku":"","price":170.0,"currency_code":"USD","in_stock":true},{"title":"Test NOS Black Plate 12AX7 \/ NOS 6V6GTA","offer_id":39593639182371,"sku":"","price":180.0,"currency_code":"USD","in_stock":true},{"title":"Test NOS Black Plate 12AX7 \/ Test NOS 6V6GTY (Brown Base)","offer_id":39593639215139,"sku":"","price":180.0,"currency_code":"USD","in_stock":true},{"title":"NOS Long Plate 12AX7 \/ NOS 6V6GT","offer_id":32306277777443,"sku":"","price":170.0,"currency_code":"USD","in_stock":true},{"title":"NOS Long Plate 12AX7 \/ Test NOS 6V6GT","offer_id":39593639739427,"sku":"","price":160.0,"currency_code":"USD","in_stock":true},{"title":"NOS Long Plate 12AX7 \/ NOS 6V6GTA","offer_id":32306277810211,"sku":"","price":170.0,"currency_code":"USD","in_stock":true},{"title":"NOS Long Plate 12AX7 \/ Test NOS 6V6GTY (Brown Base)","offer_id":32306277842979,"sku":"","price":170.0,"currency_code":"USD","in_stock":true},{"title":"Test NOS Long Plate 12AX7 \/ NOS 6V6GT","offer_id":39593639247907,"sku":"","price":160.0,"currency_code":"USD","in_stock":true},{"title":"Test NOS Long Plate 12AX7 \/ Test NOS 6V6GT","offer_id":39593639772195,"sku":"","price":150.0,"currency_code":"USD","in_stock":true},{"title":"Test NOS Long Plate 12AX7 \/ NOS 6V6GTA","offer_id":39593639280675,"sku":"","price":160.0,"currency_code":"USD","in_stock":true},{"title":"Test NOS Long Plate 12AX7 \/ Test NOS 6V6GTY (Brown Base)","offer_id":39593639313443,"sku":"","price":160.0,"currency_code":"USD","in_stock":true},{"title":"NOS 7025 \/ NOS 6V6GT","offer_id":32306277875747,"sku":"","price":180.0,"currency_code":"USD","in_stock":true},{"title":"NOS 7025 \/ Test NOS 6V6GT","offer_id":39593639804963,"sku":"","price":170.0,"currency_code":"USD","in_stock":true},{"title":"NOS 7025 \/ NOS 6V6GTA","offer_id":32306277908515,"sku":"","price":180.0,"currency_code":"USD","in_stock":true},{"title":"NOS 7025 \/ Test NOS 6V6GTY (Brown Base)","offer_id":32306277941283,"sku":"","price":180.0,"currency_code":"USD","in_stock":true},{"title":"Test NOS 7025 \/ NOS 6V6GT","offer_id":39593639346211,"sku":"","price":170.0,"currency_code":"USD","in_stock":true},{"title":"Test NOS 7025 \/ Test NOS 6V6GT","offer_id":39593639837731,"sku":"","price":160.0,"currency_code":"USD","in_stock":true},{"title":"Test NOS 7025 \/ NOS 6V6GTA","offer_id":39593639378979,"sku":"","price":170.0,"currency_code":"USD","in_stock":true},{"title":"Test NOS 7025 \/ Test NOS 6V6GTY (Brown Base)","offer_id":39593639411747,"sku":"","price":170.0,"currency_code":"USD","in_stock":true},{"title":"NOS Short Plate 12AX7A \/ NOS 6V6GT","offer_id":32306277974051,"sku":"","price":170.0,"currency_code":"USD","in_stock":true},{"title":"NOS Short Plate 12AX7A \/ Test NOS 6V6GT","offer_id":39593639870499,"sku":"","price":160.0,"currency_code":"USD","in_stock":true},{"title":"NOS Short Plate 12AX7A \/ NOS 6V6GTA","offer_id":32306278006819,"sku":"","price":170.0,"currency_code":"USD","in_stock":true},{"title":"NOS Short Plate 12AX7A \/ Test NOS 6V6GTY (Brown Base)","offer_id":32306278039587,"sku":"","price":170.0,"currency_code":"USD","in_stock":true},{"title":"Test NOS Short Plate 12AX7A \/ NOS 6V6GT","offer_id":39593639444515,"sku":"","price":160.0,"currency_code":"USD","in_stock":true},{"title":"Test NOS Short Plate 12AX7A \/ Test NOS 6V6GT","offer_id":39593639903267,"sku":"","price":150.0,"currency_code":"USD","in_stock":true},{"title":"Test NOS Short Plate 12AX7A \/ NOS 6V6GTA","offer_id":39593639477283,"sku":"","price":160.0,"currency_code":"USD","in_stock":true},{"title":"Test NOS Short Plate 12AX7A \/ Test NOS 6V6GTY (Brown Base)","offer_id":39593639510051,"sku":"","price":160.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0275\/0699\/9331\/products\/rca-champ-tube-set-nos-tubes-fuzz-audio-228272.jpg?v=1715463375"},{"product_id":"rca-6l6gc-black-plate","title":"RCA 6L6GC Black Plate","description":"\u003ch1 data-end=\"219\" data-start=\"181\"\u003e\u003cstrong data-end=\"219\" data-start=\"181\"\u003eRCA 6L6GC – Black Plate Power Tube\u003c\/strong\u003e\u003c\/h1\u003e\n\u003cp class=\"\" data-end=\"496\" data-start=\"221\"\u003eThe \u003cstrong data-end=\"238\" data-start=\"225\"\u003eRCA 6L6GC\u003c\/strong\u003e is the gold standard of American-made power tubes—and one of the most legendary 6L6s ever produced. With its rugged build, rich harmonic content, and unmistakable warmth, this tube is a favorite among guitarists, hi-fi enthusiasts, and tube amp techs alike.\u003c\/p\u003e\n\u003cp class=\"\" data-end=\"769\" data-start=\"498\"\u003eRCA's black plate 6L6GCs deliver powerful low end, creamy mids, and sweet, glassy highs—making them a go-to for everything from clean Fender tones to smooth overdrive. Whether you're restoring a vintage Twin Reverb or upgrading your modern amp, this tube brings the mojo.\u003c\/p\u003e\n\u003cp class=\"\" data-end=\"784\" data-start=\"771\"\u003e\u003cstrong data-end=\"784\" data-start=\"771\"\u003eFeatures:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul data-end=\"1062\" data-start=\"785\"\u003e\n\u003cli class=\"\" data-end=\"826\" data-start=\"785\"\u003e\n\u003cp class=\"\" data-end=\"826\" data-start=\"787\"\u003eMade in the USA – Vintage RCA quality\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli class=\"\" data-end=\"884\" data-start=\"827\"\u003e\n\u003cp class=\"\" data-end=\"884\" data-start=\"829\"\u003eBlack plate construction for rich tone and durability\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli class=\"\" data-end=\"938\" data-start=\"885\"\u003e\n\u003cp class=\"\" data-end=\"938\" data-start=\"887\"\u003eRated for 30W plate dissipation (true 6L6GC spec)\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli class=\"\" data-end=\"1002\" data-start=\"939\"\u003e\n\u003cp class=\"\" data-end=\"1002\" data-start=\"941\"\u003eIdeal for guitar amps, hi-fi gear, and vintage restorations\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli class=\"\" data-end=\"1062\" data-start=\"1003\"\u003e\n\u003cp class=\"\" data-end=\"1062\" data-start=\"1005\"\u003eTested for transconductance, shorts, noise, and emissions\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp class=\"\" data-end=\"1217\" data-start=\"1064\"\u003e\u003cstrong data-end=\"1081\" data-start=\"1064\"\u003eTone Profile:\u003c\/strong\u003e\u003cbr data-end=\"1084\" data-start=\"1081\"\u003eBold. Smooth. Musical. RCA 6L6GCs are known for their sweet compression, detailed mids, and powerful presence—especially when pushed.\u003c\/p\u003e\n\u003cp class=\"\" data-end=\"1342\" data-start=\"1219\"\u003eThese tubes are getting harder to find in great shape. Grab one while you can and bring real vintage tone back to your amp.\u003c\/p\u003e\n\u003cp\u003e\u003ci\u003eClose Matched Sets of Two Available. We are woking on offering sets of 4. Reach out if you would like a set of 4 before buying!\u003c\/i\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cem\u003e\u003cb\u003eAt Fuzz Audio:\u003c\/b\u003e\u003c\/em\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cem\u003e\u003cb\u003e·      All tubes are tested on a calibrated Hickok 539b \u0026amp; Western Electric KS-16650-L1 Tube Testers.\u003c\/b\u003e\u003c\/em\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cem\u003e\u003cb\u003e·      30 Day Money Back Guarantee \u003c\/b\u003e\u003c\/em\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cem\u003e\u003cb\u003e·       All power and preamp are tubes tested for Mutual Conductance (Gm) \u003c\/b\u003e\u003c\/em\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cem\u003e\u003cb\u003e\u003cstrong\u003e·    \u003c\/strong\u003e  Do not buy power or  preamp tubes that have been tested solely on an emissions tester or “tube checker”- this is an inadequate test.\u003c\/b\u003e\u003c\/em\u003e\u003c\/p\u003e","brand":"Fuzz Audio","offers":[{"title":"NOS","offer_id":31968050446371,"sku":"","price":250.0,"currency_code":"USD","in_stock":true},{"title":"Test NOS","offer_id":39587222847523,"sku":"","price":165.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0275\/0699\/9331\/files\/Prodcut_Photos_April-1116.jpg?v=1743536040"},{"product_id":"ge-6072-blackplate","title":"GE 6072 Black Plate (3 Mica)","description":"\u003cp\u003e\u003cstrong\u003eThe GE 6072 Black Plate\u003c\/strong\u003e tube is renowned for its exceptional sound quality, low noise floor, and longevity, making it a favorite among recording engineers, guitarists, and audiophiles in the music industry.\u003c\/p\u003e\n\u003cp\u003eOne of the standout features of the GE 6072 Black Plate is its \u003cstrong\u003elow noise floor\u003c\/strong\u003e, allowing you to capture or enjoy the subtle nuances of your audio with greater clarity and detail, without unwanted hiss or hum.\u003c\/p\u003e\n\u003cp\u003eIn addition to its low noise floor, this tube delivers \u003cstrong\u003ewarm, rich tones\u003c\/strong\u003e that are perfect for various applications, including microphone preamps, vintage Fender guitar amps, and hifi systems, providing character and body to your recordings or warming up your guitar tone.\u003c\/p\u003e\n\u003cp\u003eWhat makes the GE 6072 Black Plate even more appealing is its sturdiness and build quality, making it \u003cstrong\u003eone of the most durable tubes ever made\u003c\/strong\u003e. These tubes were built to last and are perfect for gigging musicians who are tired of replacing microphonic tubes. Our entire collection is balanced and reads at nearly an identical 1700 \/ 1700 Gm, a testament to their build quality.\u003c\/p\u003e\n\u003cp\u003eFurthermore, the GE 6072\/12AY7 is a vintage tube, giving you a piece of audio history. All of these tubes were made in the 1950s, and their unique construction and materials provide a sound that is impossible to replicate in modern tubes.\u003c\/p\u003e\n\u003cp\u003eIn conclusion, if you're looking for a vacuum tube that delivers exceptional sound quality and is built to last, the GE 6072\/12AY7 Black Plate Vintage Vacuum Tube is the perfect choice. Order yours today and experience the warmth and richness that only a vintage tube can provide!\u003c\/p\u003e\n\u003cp\u003e\u003cstrong style=\"font-family: -apple-system, BlinkMacSystemFont, 'San Francisco', 'Segoe UI', Roboto, 'Helvetica Neue', sans-serif; font-size: 1.4em;\"\u003eNeed help deciding what tubes are best for you?\u003c\/strong\u003e\u003cbr\u003e\u003c\/p\u003e\n\u003cp\u003eUse our\u003cspan\u003e \u003c\/span\u003e\u003ca href=\"https:\/\/fuzzaudio.com\/vacuum-tubes-plate-cheat-sheet-fuzz-audio\" target=\"_blank\"\u003eplate cheat sheet\u003c\/a\u003e\u003cspan\u003e \u003c\/span\u003eand\u003cspan\u003e \u003c\/span\u003e\u003ca href=\"https:\/\/fuzzaudio.com\/category\/tube-buyers-guide\" target=\"_blank\"\u003evacuum tube buyers guide\u003c\/a\u003e\u003cspan\u003e \u003c\/span\u003eto determine which tubes are best for you. Likewise, you are welcome to reach out to us directly at\u003cspan\u003e \u003c\/span\u003e\u003ca href=\"mailto:Support@FuzzAudio.com\" target=\"_blank\"\u003eSupport@FuzzAudio.com\u003c\/a\u003e\u003cspan\u003e \u003c\/span\u003eor by using our chat located on our shop page if you have further questions.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eNOS vs. ANOS vs. Test NOS\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eThese designations are strictly used to describe the cosmetic condition of our tubes. All tubes we sell test identically, come with 100% life and are guaranteed to work in your device!\u003c\/p\u003e\n\u003cp\u003eIf you are picky about owning an original box or wanting a specific logo please reach out to us\u003cspan\u003e \u003c\/span\u003e\u003cu\u003ebefore purchasing.\u003c\/u\u003e\u003c\/p\u003e\n\u003col\u003e\n\u003cli\u003e\n\u003cstrong\u003eNOS (New Old Stock) Tubes-\u003cspan\u003e \u003c\/span\u003e\u003c\/strong\u003eare 100% brand new vintage tubes in mint cosmetic condition with show zero signs of use. You should expect a legible logo and clean straight pins. An original box is likely but not guaranteed. \u003c\/li\u003e\n\u003c\/ol\u003e\n\u003col start=\"2\"\u003e\n\u003cli\u003e\n\u003cstrong\u003e\u003c\/strong\u003e\u003cstrong\u003eANOS Tubes-\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eotherwise known as “almost new old stock” tubes are basically new, but may show slight signs of use in cosmetic condition, such as a missing logo or slightly bent pins. An original box is possible but unlikely.\u003cstrong\u003e \u003c\/strong\u003e\n\u003c\/li\u003e\n\u003c\/ol\u003e\n\u003col start=\"3\"\u003e\n\u003cli\u003e\n\u003cstrong\u003eTest NOS Tubes-\u003cspan\u003e \u003c\/span\u003e\u003c\/strong\u003eare used but still operating to specification with 100% life. These tubes are equal in function to NOS valves, yet they cost considerably less because they have cosmetic blemishes. If you plan to disappear your tubes into the back of an amplifier or do not care what the tubes look like, then this is cost effective choice. Blemishes and cosmetic imperfections do not affect tone…\u003c\/li\u003e\n\u003c\/ol\u003e\n\u003cp\u003e\u003cstrong\u003eLogos:\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eVintage tubes were have a wide variety of logos printed on them. It is not uncommon to see a Mullard made tube with an RCA or GE logo, or a GE made tube with a Mullard logo. Your tube may come with a logo such are Heath Kit, Baldwin, Fisher, Hammond, Magnavox, Fender, Gibson, Silvertone, etc. but the true manufacturer of that tube will be correct to your order. If you are looking for a specific logo please reach out before purchase.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003e\u003c\/strong\u003e\u003cstrong\u003eOur Standards:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eAll tubes are tested for \u003cstrong\u003emicrophonics \u003c\/strong\u003eand are guaranteed to work in sensitive audio applications\u003c\/li\u003e\n\u003cli\u003eAll tubes sold are guaranteed to have strong (to spec) NOS test scores with 100% life\u003c\/li\u003e\n\u003cli\u003eAll tubes are tested on a calibrated Hickok 539C, Maxi-Matcher, E-Tracer or other industry standard tube analyzers\u003c\/li\u003e\n\u003cli\u003e\u003cstrong\u003eTubes are guaranteed for one year and can be returned within 30 days\u003c\/strong\u003e\u003c\/li\u003e\n\u003cli\u003ePreamp tubes matched by gain and mutual conductance (Gm)\u003c\/li\u003e\n\u003cli\u003ePower tubes matched by mA and Gm\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eDon’t forget to email\u003cspan\u003e \u003c\/span\u003e\u003ca href=\"mailto:Support@fuzzaudio.com\"\u003eSupport@fuzzaudio.com\u003c\/a\u003e\u003cspan\u003e \u003c\/span\u003eor reach out to us via chat if you need help picking out valves for your device.\u003c\/p\u003e","brand":"Fuzz Audio","offers":[{"title":"6072 Black Plate \/ NOS","offer_id":39435725504547,"sku":"GE6027BPN","price":200.0,"currency_code":"USD","in_stock":false},{"title":"6072 Black Plate \/ Tests NOS","offer_id":40025352994851,"sku":"GE6027BPT","price":175.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0275\/0699\/9331\/products\/ge-12ay76072-black-or-grey-plate-nos-tubes-fuzz-audio-nos-6072-black-plate-154992.jpg?v=1715474170"},{"product_id":"sylvania-12ax7","title":"Sylvania 12AX7","description":"\u003ch1 data-end=\"226\" data-start=\"166\"\u003e\u003cstrong data-end=\"224\" data-start=\"170\"\u003eSylvania 12AX7 – Vintage NOS USA-Made Preamp Tubes\u003c\/strong\u003e\u003c\/h1\u003e\n\u003ch3 data-end=\"263\" data-start=\"227\"\u003e\u003cstrong data-end=\"263\" data-start=\"227\"\u003eFour Types. One Legendary Sound.\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cp data-end=\"607\" data-start=\"265\"\u003eWhile RCA, Mullard, and Telefunken get most of the glory, those in the know recognize Sylvania 12AX7s as one of the best-kept secrets in the NOS tube world. These American-made preamp tubes deliver top-tier performance at a far more accessible price, making them ideal for players and audiophiles looking to upgrade without breaking the bank.\u003c\/p\u003e\n\u003cp data-end=\"877\" data-start=\"609\"\u003eFrom pristine clean tones to rich warmth and gritty breakup, Sylvania 12AX7s offer exceptional tonal variety. That’s because they weren’t just made one way—Sylvania manufactured \u003cstrong data-end=\"813\" data-start=\"787\"\u003efour distinct versions\u003c\/strong\u003e over nearly three decades, each with its own sonic personality:\u003c\/p\u003e\n\u003ch3 data-end=\"931\" data-start=\"884\"\u003e\n\u003cstrong data-end=\"908\" data-start=\"888\"\u003eLong Grey Plates\u003c\/strong\u003e \u003cem data-end=\"929\" data-start=\"909\"\u003e(1960s–early '70s)\u003c\/em\u003e\n\u003c\/h3\u003e\n\u003cp data-end=\"1192\" data-start=\"932\"\u003eThe most well-known Sylvania variant. These tubes are warm, spacious, and remarkably clean—offering a touch of added headroom compared to typical \u003cmeta charset=\"utf-8\"\u003e\u003ca href=\"https:\/\/fuzzaudio.com\/vacuum-tubes-plate-cheat-sheet-fuzz-audio\" title=\"THE VACUUM PLATE CHEAT SHEET\"\u003elong plates\u003c\/a\u003e. Perfect for blackface Fenders, pedal platforms, and HiFi setups that crave shimmer without harshness.\u003c\/p\u003e\n\u003ch3 data-end=\"1249\" data-start=\"1199\"\u003e\n\u003cstrong data-end=\"1224\" data-start=\"1203\"\u003eLong Black Plates\u003c\/strong\u003e \u003cem data-end=\"1247\" data-start=\"1225\"\u003e(late '40s–mid '50s)\u003c\/em\u003e\n\u003c\/h3\u003e\n\u003cp data-end=\"1519\" data-start=\"1250\"\u003eThe originals. These bring a gritty, vintage edge with lower headroom and a thick, saturated tone. A favorite among guitarists chasing that classic pre-CBS sound. For HiFi, they require strong mutual conductance to shine—we only stock fully tested, noise-free examples.\u003c\/p\u003e\n\u003ch3 data-end=\"1568\" data-start=\"1526\"\u003e\n\u003cstrong data-end=\"1552\" data-start=\"1530\"\u003eShort Black Plates\u003c\/strong\u003e \u003cem data-end=\"1566\" data-start=\"1553\"\u003e(1955–1958)\u003c\/em\u003e\n\u003c\/h3\u003e\n\u003cp data-end=\"1788\" data-start=\"1569\"\u003eWarm, punchy, and significantly quieter than long plates, these refined performers are ideal for both HiFi and guitar. Expect deep bass response and excellent noise rejection, all with the signature Sylvania musicality.\u003c\/p\u003e\n\u003ch3 data-end=\"1836\" data-start=\"1795\"\u003e\n\u003cstrong data-end=\"1820\" data-start=\"1799\"\u003eShort Grey Plates\u003c\/strong\u003e \u003cem data-end=\"1834\" data-start=\"1821\"\u003e(1958–1962)\u003c\/em\u003e\n\u003c\/h3\u003e\n\u003cp data-end=\"2097\" data-start=\"1837\"\u003eBuilt for military-grade durability and noise control. Often found with JAN labels, these are workhorses with slightly less warmth but unbeatable reliability. We recommend these for phase inverter duties or for anyone needing quiet, balanced power on a budget.\u003c\/p\u003e\n\u003cp\u003eRead about the four types of\u003ca href=\"https:\/\/fuzzaudio.com\/the-four-types-of-sylvania-12ax7\"\u003e Sylvania 12AX7 here!\u003c\/a\u003e\u003cmeta charset=\"utf-8\"\u003e\u003c\/p\u003e\n\u003ch3\u003e\u003cstrong\u003eNeed help deciding what tubes are best for you?\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cp\u003eUse our\u003cspan\u003e \u003c\/span\u003e\u003ca href=\"https:\/\/fuzzaudio.com\/vacuum-tubes-plate-cheat-sheet-fuzz-audio\" target=\"_blank\"\u003eplate cheat sheet\u003c\/a\u003e\u003cspan\u003e \u003c\/span\u003eand\u003cspan\u003e \u003c\/span\u003e\u003ca href=\"https:\/\/fuzzaudio.com\/category\/tube-buyers-guide\" target=\"_blank\"\u003evacuum tube buyers guide\u003c\/a\u003e\u003cspan\u003e \u003c\/span\u003eto determine which tubes are best for you. Likewise, you are welcome to reach out to us directly at\u003cspan\u003e \u003c\/span\u003e\u003ca href=\"mailto:Support@FuzzAudio.com\" target=\"_blank\"\u003eSupport@FuzzAudio.com\u003c\/a\u003e\u003cspan\u003e \u003c\/span\u003eor by using our chat located on our shop page if you have further questions.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eNOS vs. ANOS vs. Test NOS\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eThese designations are strictly used to describe the cosmetic condition of our tubes. All tubes we sell test identically, come with 100% life and are guaranteed to work in your device!\u003c\/p\u003e\n\u003cp\u003eIf you are picky about owning an original box or wanting a specific logo please reach out to us\u003cspan\u003e \u003c\/span\u003e\u003cu\u003ebefore purchasing.\u003c\/u\u003e\u003c\/p\u003e\n\u003col\u003e\n\u003cli\u003e\n\u003cstrong\u003eNOS (New Old Stock) Tubes-\u003cspan\u003e \u003c\/span\u003e\u003c\/strong\u003eare 100% brand new vintage tubes in mint cosmetic condition with show zero signs of use. You should expect a legible logo and clean straight pins. An original box is likely but not guaranteed. \u003c\/li\u003e\n\u003c\/ol\u003e\n\u003col start=\"2\"\u003e\n\u003cli\u003e\n\u003cstrong\u003e\u003c\/strong\u003e\u003cstrong\u003eANOS Tubes-\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eotherwise known as “almost new old stock” tubes are basically new, but may show slight signs of use in cosmetic condition, such as a missing logo or slightly bent pins. An original box is possible but unlikely.\u003cstrong\u003e \u003c\/strong\u003e\n\u003c\/li\u003e\n\u003c\/ol\u003e\n\u003col start=\"3\"\u003e\n\u003cli\u003e\n\u003cstrong\u003eTest NOS Tubes-\u003cspan\u003e \u003c\/span\u003e\u003c\/strong\u003eare used but still operating to specification with 100% life. These tubes are equal in function to NOS valves, yet they cost considerably less because they have cosmetic blemishes. If you plan to disappear your tubes into the back of an amplifier or do not care what the tubes look like, then this is cost effective choice. Blemishes and cosmetic imperfections do not affect tone…\u003c\/li\u003e\n\u003c\/ol\u003e\n\u003cp\u003e\u003cstrong\u003eLogos:\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eVintage tubes have a wide variety of logos printed on them. It is not uncommon to see a Mullard made tube with an RCA or GE logo, or a GE made tube with a Mullard logo. Your tube may come with a logo such are Heath Kit, Baldwin, Fisher, Hammond, Magnavox, Fender, Gibson, Silvertone, etc. but the true manufacturer of that tube will be correct to your order. If you are looking for a specific logo please reach out before purchase.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003e\u003c\/strong\u003e\u003cstrong\u003eOur Standards:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eAll tubes are tested for \u003cstrong\u003emicrophonics \u003c\/strong\u003eand are guaranteed to work in sensitive audio applications\u003c\/li\u003e\n\u003cli\u003eAll tubes sold are guaranteed to have strong (to spec) NOS test scores with 100% life\u003c\/li\u003e\n\u003cli\u003eAll tubes are tested on a calibrated Hickok 539C, Maxi-Matcher, E-Tracer or other industry standard tube analyzers\u003c\/li\u003e\n\u003cli\u003e\u003cstrong\u003eTubes are guaranteed for one year and can be returned within 30 days\u003c\/strong\u003e\u003c\/li\u003e\n\u003cli\u003ePreamp tubes matched by gain and mutual conductance (Gm)\u003c\/li\u003e\n\u003cli\u003ePower tubes matched by mA and Gm\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eDon’t forget to email\u003cspan\u003e \u003c\/span\u003e\u003ca href=\"mailto:Support@fuzzaudio.com\" target=\"_blank\"\u003eSupport@fuzzaudio.com\u003c\/a\u003e\u003cspan\u003e \u003c\/span\u003eor reach out to us via chat if you need help picking out valves for your device.\u003c\/p\u003e","brand":"Fuzz Audio","offers":[{"title":"Long Grey Plate (NOS)","offer_id":32253179035683,"sku":"NOSAX7SLU-1","price":60.0,"currency_code":"USD","in_stock":false},{"title":"Long Grey Plate (Test NOS","offer_id":32253179068451,"sku":"NOSAX7SLU-2","price":50.0,"currency_code":"USD","in_stock":false},{"title":"12AX7WA (NOS NIB)","offer_id":32253179133987,"sku":"NOSAX7SLU-4","price":80.0,"currency_code":"USD","in_stock":false},{"title":"7025 (NOS NIB)","offer_id":39495757824035,"sku":"","price":60.0,"currency_code":"USD","in_stock":false},{"title":"Long Black Plate (Test NOS)","offer_id":39544909856803,"sku":"","price":100.0,"currency_code":"USD","in_stock":true},{"title":"Short Black Plate (NOS)","offer_id":40365857275939,"sku":"","price":120.0,"currency_code":"USD","in_stock":false},{"title":"Short Black Plate (Test NOS)","offer_id":39544909889571,"sku":"","price":100.0,"currency_code":"USD","in_stock":false},{"title":"Short Grey Plate (NOS)","offer_id":40365857308707,"sku":"","price":50.0,"currency_code":"USD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0275\/0699\/9331\/products\/sylvania-12ax7-options-nos-tubes-fuzz-audio-484955.jpg?v=1751395200"},{"product_id":"usa-5751","title":"USA 5751 Collection (GE, Sylvania, RCA)","description":"\u003ch2\u003e\u003cstrong\u003eIntroducing Our Legendary USA 5751 Collection: Premium Vintage Vacuum Tubes \u003c\/strong\u003e\u003c\/h2\u003e\n\u003cp\u003eThe USA 5751 Collection is a treasure trove of iconic vacuum tubes that have shaped the sound of guitar amplifiers for decades. This collection includes the GE Grey and Black Plate 5751, RCA Black Plate 5751, and Sylvania Grey and Black Plate 5751. Each of these NOS tubes (New Old Stock) is a piece of history, revered for their superior sound quality and reliability. Let's delve into what makes each of these tubes so special and why they are the preferred choice for vintage amp enthusiasts.\u003c\/p\u003e\n\u003ch3\u003eLower Gain, Higher Potential\u003c\/h3\u003e\n\u003cp\u003eOne of the key characteristics that set the 5751 tubes apart from their counterparts, like the 12AX7, is their lower gain. The 5751 tubes typically have a gain factor of around 70 compared to the 12AX7's 100. This difference in gain can have a significant impact on your guitar amp's performance. The lower gain of the 5751 allows for a smoother, more controlled breakup and overdrive, which can enhance the tonal range and depth of your amp. It also provides more headroom, meaning you can achieve cleaner tones at higher volumes and a more nuanced overdrive when you push the amp harder. In essence, the lower gain of the 5751 will take your amp places you didn't know it could go, offering new levels of versatility and expressiveness.\u003c\/p\u003e\n\u003ch3\u003eGE Grey and Black Plate 5751\u003c\/h3\u003e\n\u003cp\u003eThe GE 5751 tubes are renowned for their exceptional build quality and balanced tonal characteristics. The Grey Plate 5751 is known for its smooth midrange and clear highs, making it a favorite for guitar amps that require a smooth, warm, clean and articulate sound. On the other hand, the Black Plate 5751 is celebrated for its warmth and depth, providing a richer, more dynamic tone that is perfect for blues and rock.\u003c\/p\u003e\n\u003ch3\u003eRCA Black Plate 5751\u003c\/h3\u003e\n\u003cp\u003eThe RCA Black Plate 5751 is a legendary tube that has been a staple in the guitar amp community for decades. Its robust construction and high-quality materials ensure long-lasting performance. This tube is particularly famous for its rich, full-bodied sound and its ability to produce lush overtones. It excels in Fender amps, providing a creamy, smooth distortion that is highly sought after by vintage amp enthusiasts.\u003c\/p\u003e\n\u003ch3\u003eSylvania Grey and Black Plate 5751\u003c\/h3\u003e\n\u003cp\u003eSylvania's 5751 tubes are distinguished by their versatility and tonal clarity. The Grey Plate 5751 is perfect for those seeking a detailed and transparent sound, making it ideal for jazz and clean guitar tones. The Black Plate 5751, meanwhile, offers a slightly darker, more aggressive tone, which is perfect for rock and heavier genres. Sylvania tubes are known for their durability and consistent performance, making them a reliable choice for any tube amp.\u003c\/p\u003e\n\u003ch3\u003eThe Stevie Ray Vaughan Connection\u003c\/h3\u003e\n\u003cp\u003eOne of the most iconic users of the 5751 tubes was none other than Stevie Ray Vaughan. Known for his incredible tone and powerful playing, Vaughan often used 5751 tubes in his Fender amps. The lower gain of the 5751 compared to the 12AX7 allowed Vaughan to achieve a more controlled, expressive sound, contributing to his legendary status. His use of these vintage vacuum tubes cemented their reputation as essential components for achieving a timeless, classic guitar tone.\u003c\/p\u003e\n\u003ch3\u003eWhy Vintage 5751 Tubes Sound Better\u003c\/h3\u003e\n\u003cp\u003eModern tubes often lack the craftsmanship and quality of materials found in vintage tubes. The meticulous construction and high standards of the past result in a more reliable and better-sounding product. The NOS 5751 tubes in the USA 5751 Collection offer superior harmonic richness, clarity, and warmth that modern tubes simply cannot replicate. They are the perfect choice for anyone looking to enhance their vintage amp, tube amp, Fender amp, or guitar amp with the best in vintage vacuum tube technology.\u003c\/p\u003e\n\u003ch3\u003eKey Features\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eSuperior Sound Quality\u003c\/strong\u003e: Enhanced harmonic richness and tonal clarity.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eHistorical Significance\u003c\/strong\u003e: Used by legendary musicians like Stevie Ray Vaughan.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eReliable Performance\u003c\/strong\u003e: Built to last with high-quality materials and craftsmanship.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eVersatile Applications\u003c\/strong\u003e: Any guitar amp that uses a 12AX7 can have a 5751 safely installed. The lower gain of the 5751 will take your amp places you didn't know it could go. \u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eUpgrade your amp tubes with the USA 5751 Collection and experience the unmatched sound quality of vintage vacuum tubes. Whether you're a seasoned musician or a vintage amp aficionado, these 5751 tubes will elevate your sound to new heights. Don't settle for modern imitations—invest in the best with our NOS tubes and rediscover the magic of classic tube tone.\u003c\/p\u003e","brand":"Fuzz Audio","offers":[{"title":"RCA 5751 Black Plate \/ NOS","offer_id":32027969159203,"sku":"NOS5751BP","price":85.0,"currency_code":"USD","in_stock":false},{"title":"RCA 5751 Black Plate \/ Tests NOS","offer_id":40477188194339,"sku":"","price":75.0,"currency_code":"USD","in_stock":false},{"title":"GE 5751 Black Plate \/ NOS","offer_id":32925743513635,"sku":"","price":80.0,"currency_code":"USD","in_stock":true},{"title":"GE 5751 Black Plate \/ Tests NOS","offer_id":40477188227107,"sku":"","price":70.0,"currency_code":"USD","in_stock":false},{"title":"GE 5751 Grey Plate \/ NOS","offer_id":32925743874083,"sku":"","price":60.0,"currency_code":"USD","in_stock":true},{"title":"GE 5751 Grey Plate \/ Tests NOS","offer_id":40477188259875,"sku":"","price":50.0,"currency_code":"USD","in_stock":true},{"title":"Sylvania Grey Plate 5751 \/ NOS","offer_id":39303987855395,"sku":"","price":55.0,"currency_code":"USD","in_stock":false},{"title":"Sylvania Grey Plate 5751 \/ Tests NOS","offer_id":40477188292643,"sku":"","price":45.0,"currency_code":"USD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0275\/0699\/9331\/products\/rca-5751-black-plate-nos-tubes-fuzz-audio-912971.jpg?v=1717696824"},{"product_id":"tung-sol-6550","title":"Tung-Sol 6550 Metal Base","description":"\u003cp\u003eOur collection of NOS Tung-Sol 6550s will give you the incredible cleans or explosive grit that you have been waiting for. \u003c\/p\u003e\n\u003cp\u003eThese magnificent metal base tubes that sound absolutely beautiful in any audio or guitar application- so beautiful that they still make this tube in reissue form. Yet, we have the real deal!\u003c\/p\u003e\n\u003cp\u003eThis is the classic option for making Marshall or other high wattage amplifiers sing like you have always dreamed. By far one of the best 6550s ever made. \u003c\/p\u003e\n\u003cp\u003eTube in photo represents tube you will receive. \u003cb\u003eTung-Sol \u003c\/b\u003emade these tubes for several major distributors. \u003cb\u003eGetter construction or logo may differ (manufacturer will not)\u003c\/b\u003e. We will do our best to match logos and construction when pairs\/sets are purchased but test results will come first. If you are looking for a specific getter\/plate length\/logo, etc. please reach out!\u003c\/p\u003e\n\u003cp\u003eVisit \u003ca href=\"https:\/\/fuzzaudio.com\/category\/tube-buyers-guide\"\u003e“The Tube Buyer’s Guide”\u003c\/a\u003e to find the tubes that fit your play style the best!\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e","brand":"Fuzz Audio","offers":[{"title":"Matched Black Smooth Plate Pair","offer_id":39630574157859,"sku":"","price":800.0,"currency_code":"USD","in_stock":false},{"title":"Smooth","offer_id":32187285045283,"sku":"","price":250.0,"currency_code":"USD","in_stock":false},{"title":"3-Hole","offer_id":32187285110819,"sku":"","price":200.0,"currency_code":"USD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0275\/0699\/9331\/products\/tung-sol-6550-metal-base-nos-tubes-fuzz-audio-254989.jpg?v=1715463489"},{"product_id":"ge-6550","title":"Sylvania 6550","description":"\u003cp\u003eSylvania 6550 metal base power tubes are becoming more and more popular every day. You can't go wrong with these bad boys... Try a pair today!\u003cbr\u003e\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e","brand":"Fuzz Audio","offers":[{"title":"Default Title","offer_id":32871235059747,"sku":"","price":149.0,"currency_code":"USD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0275\/0699\/9331\/products\/ge-6550-options-nos-tubes-fuzz-audio-697258.jpg?v=1715464582"},{"product_id":"us-champ-tube-set","title":"Build Your Own Champ Tube Set","description":"\u003cp\u003eThe US Champ Set offers you the choice to customize your set exactly the way you want it, at an unbeatable price. \u003c\/p\u003e\n\u003cp\u003eYou will have the choice to mix and match: Sylvania, GE, Tung-Sol, Raytheon, and more!\u003c\/p\u003e\n\u003cp\u003eAll tubes will be NOS in condition.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003e\u003c\/strong\u003e\u003cstrong\u003eOur Standards:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eAll tubes are tested for \u003cstrong\u003emicrophonics \u003c\/strong\u003eand are guaranteed to work in sensitive audio applications\u003c\/li\u003e\n\u003cli\u003eAll tubes sold are guaranteed to have strong (to spec) NOS test scores with 100% life\u003c\/li\u003e\n\u003cli\u003eAll tubes are tested on a calibrated Hickok 539C, Maxi-Matcher, E-Tracer or other industry standard tube analyzers\u003c\/li\u003e\n\u003cli\u003e\u003cstrong\u003eTubes are guaranteed for one year and can be returned within 30 days\u003c\/strong\u003e\u003c\/li\u003e\n\u003cli\u003ePreamp tubes matched by gain and mutual conductance (Gm)\u003c\/li\u003e\n\u003cli\u003ePower tubes matched by mA and Gm\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eDon’t forget to email\u003cspan\u003e \u003c\/span\u003e\u003ca href=\"mailto:Support@fuzzaudio.com\"\u003eSupport@fuzzaudio.com\u003c\/a\u003e\u003cspan\u003e \u003c\/span\u003eor reach out to us via chat if you need help picking out valves for your 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Only a few tubes are more creamy then these gems and surely impress all levels of listeners.\u003c\/p\u003e\n\u003cp\u003eWe currently have matched NIB sets available but they will go fast! \u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003ch3\u003e\u003cstrong\u003eNeed help deciding what tubes are best for you?\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cp\u003eUse our\u003cspan\u003e \u003c\/span\u003e\u003ca href=\"https:\/\/fuzzaudio.com\/vacuum-tubes-plate-cheat-sheet-fuzz-audio\" target=\"_blank\"\u003eplate cheat sheet\u003c\/a\u003e\u003cspan\u003e \u003c\/span\u003eand\u003cspan\u003e \u003c\/span\u003e\u003ca href=\"https:\/\/fuzzaudio.com\/category\/tube-buyers-guide\" target=\"_blank\"\u003evacuum tube buyers guide\u003c\/a\u003e\u003cspan\u003e \u003c\/span\u003eto determine which tubes are best for you. Likewise, you are welcome to reach out to us directly at\u003cspan\u003e \u003c\/span\u003e\u003ca href=\"mailto:Support@FuzzAudio.com\" target=\"_blank\"\u003eSupport@FuzzAudio.com\u003c\/a\u003e\u003cspan\u003e \u003c\/span\u003eor by using our chat located on our shop page if you have further questions.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eNOS vs. ANOS vs. Test NOS\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eThese designations are strictly used to describe the cosmetic condition of our tubes. All tubes we sell test identically, come with 100% life and are guaranteed to work in your device!\u003c\/p\u003e\n\u003cp\u003eIf you are picky about owning an original box or wanting a specific logo please reach out to us\u003cspan\u003e \u003c\/span\u003e\u003cu\u003ebefore purchasing.\u003c\/u\u003e\u003c\/p\u003e\n\u003col\u003e\n\u003cli\u003e\n\u003cstrong\u003eNOS (New Old Stock) Tubes-\u003cspan\u003e \u003c\/span\u003e\u003c\/strong\u003eare 100% brand new vintage tubes in mint cosmetic condition with show zero signs of use. You should expect a legible logo and clean straight pins. An original box is likely but not guaranteed. \u003c\/li\u003e\n\u003c\/ol\u003e\n\u003col start=\"2\"\u003e\n\u003cli\u003e\n\u003cstrong\u003e\u003c\/strong\u003e\u003cstrong\u003eANOS Tubes-\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eotherwise known as “almost new old stock” tubes are basically new, but may show slight signs of use in cosmetic condition, such as a missing logo or slightly bent pins. An original box is possible but unlikely.\u003cstrong\u003e \u003c\/strong\u003e\n\u003c\/li\u003e\n\u003c\/ol\u003e\n\u003col start=\"3\"\u003e\n\u003cli\u003e\n\u003cstrong\u003eTest NOS Tubes-\u003cspan\u003e \u003c\/span\u003e\u003c\/strong\u003eare used but still operating to specification with 100% life. These tubes are equal in function to NOS valves, yet they cost considerably less because they have cosmetic blemishes. If you plan to disappear your tubes into the back of an amplifier or do not care what the tubes look like, then this is cost effective choice. Blemishes and cosmetic imperfections do not affect tone…\u003c\/li\u003e\n\u003c\/ol\u003e\n\u003cp\u003e\u003cstrong\u003eLogos:\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eVintage tubes were have a wide variety of logos printed on them. It is not uncommon to see a Mullard made tube with an RCA or GE logo, or a GE made tube with a Mullard logo. Your tube may come with a logo such are Heath Kit, Baldwin, Fisher, Hammond, Magnavox, Fender, Gibson, Silvertone, etc. but the true manufacturer of that tube will be correct to your order. If you are looking for a specific logo please reach out before purchase.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003e\u003c\/strong\u003e\u003cstrong\u003eOur Standards:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eAll tubes are tested for \u003cstrong\u003emicrophonics \u003c\/strong\u003eand are guaranteed to work in sensitive audio applications\u003c\/li\u003e\n\u003cli\u003eAll tubes sold are guaranteed to have strong (to spec) NOS test scores with 100% life\u003c\/li\u003e\n\u003cli\u003eAll tubes are tested on a calibrated Hickok 539C, Maxi-Matcher, E-Tracer or other industry standard tube analyzers\u003c\/li\u003e\n\u003cli\u003e\u003cstrong\u003eTubes are guaranteed for one year and can be returned within 30 days\u003c\/strong\u003e\u003c\/li\u003e\n\u003cli\u003ePreamp tubes matched by gain and mutual conductance (Gm)\u003c\/li\u003e\n\u003cli\u003ePower tubes matched by mA and Gm\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eDon’t forget to email\u003cspan\u003e \u003c\/span\u003e\u003ca href=\"mailto:Support@fuzzaudio.com\"\u003eSupport@fuzzaudio.com\u003c\/a\u003e\u003cspan\u003e \u003c\/span\u003eor reach out to us via chat if you need help picking out valves for your device.\u003c\/p\u003e","brand":"Fuzz Audio","offers":[{"title":"GT","offer_id":32187246444579,"sku":"","price":65.0,"currency_code":"USD","in_stock":false},{"title":"GTA","offer_id":32187246477347,"sku":"","price":50.0,"currency_code":"USD","in_stock":true},{"title":"GTB","offer_id":32187246510115,"sku":"","price":50.0,"currency_code":"USD","in_stock":true},{"title":"VT-231","offer_id":32871301021731,"sku":"","price":150.0,"currency_code":"USD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0275\/0699\/9331\/products\/rca-6sn7-multiple-options-nos-tubes-fuzz-audio-688019.jpg?v=1715466959"},{"product_id":"us-6bq5-multiple-options","title":"US 6BQ5\/EL84 (Options)","description":"\u003cp\u003eThe USA made 6BQ5\/EL84 is a classic vacuum tube that has been used in many guitar amplifiers and hi-fi systems for decades. This tube is known for its crisp and clear sound, making it a favorite of audiophiles and guitarists alike.\u003c\/p\u003e\n\u003cp\u003eAt Fuzz Audio, we offer the 6BQ5\/EL84 in several different brands, including GE, Sylvania, Raytheon, RCA, and Tung-Sol. Each of these brands has its unique characteristics that set it apart from the others.\u003c\/p\u003e\n\u003cp\u003eThe\u003cstrong\u003e GE 6BQ5\/EL84\u003c\/strong\u003e \u003cmeta charset=\"utf-8\"\u003eis known for its warm and rich sound, making it a favorite among guitarists. The \u003cstrong\u003eSylvania 6BQ5\/EL84\u003c\/strong\u003e \u003cmeta charset=\"utf-8\"\u003eis known for its clarity and balance, making it an excellent choice for hi-fi systems The \u003cstrong\u003eRaytheon 6BQ5\/EL84\u003c\/strong\u003e is known for its smooth and natural sound, making it a versatile choice for both guitar amplifiers and hi-fi systems.\u003c\/p\u003e\n\u003cp\u003eLike their GE brethren, the \u003cstrong\u003eRCA 6BQ5\/EL84\u003c\/strong\u003e is warm, rich and dynamic, making it an excellent choice for guitarists who want to add some warmth and articulation to their sound. Finally, the \u003cstrong\u003eTung-Sol 6BQ5\/EL84\u003c\/strong\u003e is known for its rounded and warm sound, like a warm hug, Tung-Sol are an excellent choice for audiophiles who want to add warmth to their rig.\u003c\/p\u003e\n\u003cp\u003eNo matter which brand of 6BQ5\/EL84 you choose, you can rest assured that you are getting a high-quality vintage vacuum tube that will bring warmth and character to your amplifier or hi-fi system. All of our tubes are carefully tested and matched (for free) to ensure that you get the best possible sound. So why wait? Upgrade your amplifier or hi-fi system with a set of USA 6BQ5\/EL84 vintage vacuum tubes from Fuzz Audio today!\u003c\/p\u003e","brand":"Fuzz Audio","offers":[{"title":"Sylvania (Grey)","offer_id":32213494267939,"sku":"","price":35.0,"currency_code":"USD","in_stock":false},{"title":"NOS GE 6BQ5","offer_id":32213494300707,"sku":"","price":60.0,"currency_code":"USD","in_stock":false},{"title":"RCA (Grey)","offer_id":32213494333475,"sku":"","price":45.0,"currency_code":"USD","in_stock":false},{"title":"Random Test NOS Made in USA (Pairs Available)","offer_id":39603477446691,"sku":null,"price":40.0,"currency_code":"USD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0275\/0699\/9331\/products\/us-6bq5el84-options-nos-tubes-fuzz-audio-683941.jpg?v=1715464086"},{"product_id":"tung-sol-12ax7","title":"Tung-Sol 12AX7","description":"\u003cp\u003eVintage creamy goodness in a bottle. The Tung-Sol 12AX7 is an excellent option if you are looking to improve the performance  of any guitar or Hi-Fi amplifier. \u003c\/p\u003e\n\u003ch3\u003e\u003cstrong\u003eNeed help deciding what tubes are best for you?\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cp\u003eUse our\u003cspan\u003e \u003c\/span\u003e\u003ca href=\"https:\/\/fuzzaudio.com\/vacuum-tubes-plate-cheat-sheet-fuzz-audio\" target=\"_blank\" data-mce-href=\"https:\/\/fuzzaudio.com\/vacuum-tubes-plate-cheat-sheet-fuzz-audio\"\u003eplate cheat sheet\u003c\/a\u003e\u003cspan\u003e \u003c\/span\u003eand\u003cspan\u003e \u003c\/span\u003e\u003ca href=\"https:\/\/fuzzaudio.com\/category\/tube-buyers-guide\" target=\"_blank\" data-mce-href=\"https:\/\/fuzzaudio.com\/category\/tube-buyers-guide\"\u003evacuum tube buyers guide\u003c\/a\u003e\u003cspan\u003e \u003c\/span\u003eto determine which tubes are best for you. Likewise, you are welcome to reach out to us directly at\u003cspan\u003e \u003c\/span\u003e\u003ca href=\"mailto:Support@FuzzAudio.com\" target=\"_blank\" data-mce-href=\"mailto:Support@FuzzAudio.com\"\u003eSupport@FuzzAudio.com\u003c\/a\u003e\u003cspan\u003e \u003c\/span\u003eor by using our chat located on our shop page if you have further questions.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eNOS vs. ANOS vs. Test NOS\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eThese designations are strictly used to describe the cosmetic condition of our tubes. All tubes we sell test identically, come with 100% life and are guaranteed to work in your device!\u003c\/p\u003e\n\u003cp\u003eIf you are picky about owning an original box or wanting a specific logo please reach out to us\u003cspan\u003e \u003c\/span\u003e\u003cu\u003ebefore purchasing.\u003c\/u\u003e\u003c\/p\u003e\n\u003col\u003e\n\u003cli\u003e\n\u003cstrong\u003eNOS (New Old Stock) Tubes-\u003cspan\u003e \u003c\/span\u003e\u003c\/strong\u003eare 100% brand new vintage tubes in mint cosmetic condition with show zero signs of use. You should expect a legible logo and clean straight pins. An original box is likely but not guaranteed. \u003c\/li\u003e\n\u003c\/ol\u003e\n\u003col start=\"2\"\u003e\n\u003cli\u003e\n\u003cstrong\u003e\u003c\/strong\u003e\u003cstrong\u003eANOS Tubes-\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eotherwise known as “almost new old stock” tubes are basically new, but may show slight signs of use in cosmetic condition, such as a missing logo or slightly bent pins. An original box is possible but unlikely.\u003cstrong\u003e \u003c\/strong\u003e\n\u003c\/li\u003e\n\u003c\/ol\u003e\n\u003col start=\"3\"\u003e\n\u003cli\u003e\n\u003cstrong\u003eTest NOS Tubes-\u003cspan\u003e \u003c\/span\u003e\u003c\/strong\u003eare used but still operating to specification with 100% life. These tubes are equal in function to NOS valves, yet they cost considerably less because they have cosmetic blemishes. If you plan to disappear your tubes into the back of an amplifier or do not care what the tubes look like, then this is cost effective choice. Blemishes and cosmetic imperfections do not affect tone…\u003c\/li\u003e\n\u003c\/ol\u003e\n\u003cp\u003e\u003cstrong\u003eLogos:\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eVintage tubes have a wide variety of logos printed on them. It is not uncommon to see a Mullard made tube with an RCA or GE logo, or a GE made tube with a Mullard logo. Your tube may come with a logo such are Heath Kit, Baldwin, Fisher, Hammond, Magnavox, Fender, Gibson, Silvertone, etc. but the true manufacturer of that tube will be correct to your order. If you are looking for a specific logo please reach out before purchase.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003e\u003c\/strong\u003e\u003cstrong\u003eOur Standards:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eAll tubes are tested for \u003cstrong\u003emicrophonics \u003c\/strong\u003eand are guaranteed to work in sensitive audio applications\u003c\/li\u003e\n\u003cli\u003eAll tubes sold are guaranteed to have strong (to spec) NOS test scores with 100% life\u003c\/li\u003e\n\u003cli\u003eAll tubes are tested on a calibrated Hickok 539C, Maxi-Matcher, E-Tracer or other industry standard tube analyzers\u003c\/li\u003e\n\u003cli\u003e\u003cstrong\u003eTubes are guaranteed for one year and can be returned within 30 days\u003c\/strong\u003e\u003c\/li\u003e\n\u003cli\u003ePreamp tubes matched by gain and mutual conductance (Gm)\u003c\/li\u003e\n\u003cli\u003ePower tubes matched by mA and Gm\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eDon’t forget to email\u003cspan\u003e \u003c\/span\u003e\u003ca href=\"mailto:Support@fuzzaudio.com\" target=\"_blank\" data-mce-href=\"mailto:Support@fuzzaudio.com\"\u003eSupport@fuzzaudio.com\u003c\/a\u003e\u003cspan\u003e \u003c\/span\u003eor reach out to us via chat if you need help picking out valves for your device.\u003c\/p\u003e","brand":"Fuzz Audio","offers":[{"title":"NOS","offer_id":39641856868387,"sku":"","price":70.0,"currency_code":"USD","in_stock":false},{"title":"Test NOS","offer_id":39641856901155,"sku":"","price":60.0,"currency_code":"USD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0275\/0699\/9331\/products\/tung-sol-12ax7-nos-tubes-fuzz-audio-696556.jpg?v=1597428840"},{"product_id":"rca-12bh7","title":"RCA 12BH7","description":"\u003carticle class=\"text-token-text-primary w-full\" dir=\"auto\" data-testid=\"conversation-turn-2\" data-scroll-anchor=\"true\"\u003e\n\u003ch6 class=\"sr-only\"\u003eChatGPT said:\u003c\/h6\u003e\n\u003cdiv class=\"text-base my-auto mx-auto pb-10 [--thread-content-margin:--spacing(4)] @[37rem]:[--thread-content-margin:--spacing(6)] @[72rem]:[--thread-content-margin:--spacing(16)] px-(--thread-content-margin)\"\u003e\n\u003cdiv class=\"[--thread-content-max-width:32rem] @[34rem]:[--thread-content-max-width:40rem] @[64rem]:[--thread-content-max-width:48rem] mx-auto flex max-w-(--thread-content-max-width) flex-1 text-base gap-4 md:gap-5 lg:gap-6 group\/turn-messages focus-visible:outline-hidden\" tabindex=\"-1\"\u003e\n\u003cdiv class=\"group\/conversation-turn relative flex w-full min-w-0 flex-col agent-turn\"\u003e\n\u003cdiv class=\"relative flex-col gap-1 md:gap-3\"\u003e\n\u003cdiv class=\"flex max-w-full flex-col grow\"\u003e\n\u003cdiv data-message-author-role=\"assistant\" data-message-id=\"f25a1e58-738c-43f9-8378-ead24af799cc\" dir=\"auto\" class=\"min-h-8 text-message relative flex w-full flex-col items-end gap-2 text-start break-words whitespace-normal [.text-message+\u0026amp;]:mt-5\" data-message-model-slug=\"gpt-4o\"\u003e\n\u003cdiv class=\"flex w-full flex-col gap-1 empty:hidden first:pt-[3px]\"\u003e\n\u003cdiv class=\"markdown prose dark:prose-invert w-full break-words dark\"\u003e\n\u003ch1 data-start=\"0\" data-end=\"120\"\u003e\n\u003cstrong data-start=\"0\" data-end=\"54\"\u003eRCA 12BH7 – Black or Grey Plate – NOS Vintage Tube\u003c\/strong\u003e\u003cbr data-start=\"54\" data-end=\"57\"\u003e\u003cem data-start=\"57\" data-end=\"120\"\u003e\u003c\/em\u003e\n\u003c\/h1\u003e\n\u003ch3 data-start=\"0\" data-end=\"120\"\u003e\u003cem data-start=\"57\" data-end=\"120\"\u003eExcellent choice for McIntosh amps and LA-2A style compressors!\u003c\/em\u003e\u003c\/h3\u003e\n\u003cp data-start=\"122\" data-end=\"379\"\u003eThe RCA 12BH7 is a premium dual triode tube prized for its musicality, clarity, and low noise performance. Whether you're running a vintage McIntosh preamp or a custom Hi-Fi build, this tube delivers rich tone with just the right touch of warmth and detail.\u003c\/p\u003e\n\u003cp data-start=\"381\" data-end=\"402\"\u003eChoose your flavor:\u003c\/p\u003e\n\u003cul data-start=\"403\" data-end=\"579\"\u003e\n\u003cli data-start=\"403\" data-end=\"488\"\u003e\n\u003cp data-start=\"405\" data-end=\"488\"\u003e\u003cstrong data-start=\"405\" data-end=\"420\"\u003eBlack plate\u003c\/strong\u003e: A touch warmer, with deeper midrange and a classic vintage feel.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"489\" data-end=\"579\"\u003e\n\u003cp data-start=\"491\" data-end=\"579\"\u003e\u003cstrong data-start=\"491\" data-end=\"505\"\u003eGrey plate\u003c\/strong\u003e: Slightly more neutral and open, offering crisp articulation and balance.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp data-start=\"581\" data-end=\"748\"\u003eEach tube is tested and guaranteed to perform. Perfect for McIntosh models like the C20, MX110, or any amp that relies on the 12BH7 for phase inversion or driver duty.\u003c\/p\u003e\n\u003cp data-start=\"750\" data-end=\"836\" data-is-last-node=\"\" data-is-only-node=\"\"\u003e\u003cstrong data-start=\"750\" data-end=\"785\"\u003eNOS, tested, and ready to sing.\u003c\/strong\u003e\u003cbr data-start=\"785\" data-end=\"788\"\u003eSelect your plate style and elevate your system.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"mx-[var(--mini-thread-content-inset)]\"\u003e\n\u003cdiv class=\"flex min-h-[46px] justify-start\"\u003e\n\u003cdiv class=\"touch:-me-2 touch:-ms-3.5 -ms-2.5 -me-1 flex flex-wrap items-center gap-y-4 p-1 select-none touch:w-[calc(100%+--spacing(3.5))] -mt-1 w-[calc(100%+--spacing(2.5))] duration-[1.5s] focus-within:transition-none hover:transition-none pointer-events-none [mask-image:linear-gradient(to_right,black_33%,transparent_66%)] 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2.66821 12.6663ZM9.33521 12.5003V4.9388L7.13696 7.13704C6.87732 7.39668 6.45625 7.39657 6.19653 7.13704C5.93684 6.87734 5.93684 6.45631 6.19653 6.19661L9.52954 2.86263L9.6311 2.77962C9.73949 2.70742 9.86809 2.66829 10.0002 2.66829C10.1763 2.66838 10.3454 2.73819 10.47 2.86263L13.804 6.19661C14.0633 6.45628 14.0634 6.87744 13.804 7.13704C13.5443 7.39674 13.1222 7.39674 12.8625 7.13704L10.6653 4.93977V12.5003C10.6651 12.8673 10.3673 13.1652 10.0002 13.1654C9.63308 13.1654 9.33538 12.8674 9.33521 12.5003Z\"\u003e\u003c\/path\u003e\u003c\/svg\u003e\u003c\/span\u003e\u003c\/button\u003e\n\u003cdiv class=\"flex items-center\"\u003e\n\u003csvg width=\"20\" height=\"20\" viewbox=\"0 0 20 20\" fill=\"currentColor\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\" class=\"icon\"\u003e\u003cpath d=\"M3.502 16.6663V13.3333C3.502 12.9661 3.79977 12.6683 4.16704 12.6683H7.50004L7.63383 12.682C7.93691 12.7439 8.16508 13.0119 8.16508 13.3333C8.16508 13.6547 7.93691 13.9227 7.63383 13.9847L7.50004 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9.08431C3.17574 5.46702 6.26076 2.66829 10 2.66829Z\"\u003e\u003c\/path\u003e\u003c\/svg\u003e\u003csvg width=\"16\" height=\"16\" viewbox=\"0 0 16 16\" fill=\"currentColor\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\" class=\"icon-sm\"\u003e\u003cpath d=\"M12.1338 5.94433C12.3919 5.77382 12.7434 5.80202 12.9707 6.02929C13.1979 6.25656 13.2261 6.60807 13.0556 6.8662L12.9707 6.9707L8.47067 11.4707C8.21097 11.7304 7.78896 11.7304 7.52926 11.4707L3.02926 6.9707L2.9443 6.8662C2.77379 6.60807 2.80199 6.25656 3.02926 6.02929C3.25653 5.80202 3.60804 5.77382 3.86617 5.94433L3.97067 6.02929L7.99996 10.0586L12.0293 6.02929L12.1338 5.94433Z\"\u003e\u003c\/path\u003e\u003c\/svg\u003e\n\u003c\/div\u003e\n\u003cspan class=\"\" data-state=\"closed\"\u003e\u003cbutton class=\"cursor-pointer text-token-text-secondary hover:bg-token-bg-secondary touch:px-2.5 h-[30px] rounded-md px-1.5\" aria-label=\"Switch model\" type=\"button\" id=\"radix-«r9n»\" aria-haspopup=\"menu\" aria-expanded=\"false\" data-state=\"closed\"\u003e\u003c\/button\u003e\u003c\/span\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"mt-3 w-full empty:hidden\"\u003e\n\u003cdiv class=\"text-center\"\u003e\u003cbr\u003e\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/article\u003e\n\u003cdiv aria-hidden=\"true\" data-edge=\"true\" class=\"pointer-events-none h-px w-px\"\u003e\u003cbr\u003e\u003c\/div\u003e\n\u003cp\u003e\u003cstrong\u003eNeed help deciding what tubes are best for you?\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eUse our\u003cspan\u003e \u003c\/span\u003e\u003ca href=\"https:\/\/fuzzaudio.com\/vacuum-tubes-plate-cheat-sheet-fuzz-audio\" target=\"_blank\"\u003eplate cheat sheet\u003c\/a\u003e\u003cspan\u003e \u003c\/span\u003eand\u003cspan\u003e \u003c\/span\u003e\u003ca href=\"https:\/\/fuzzaudio.com\/category\/tube-buyers-guide\" target=\"_blank\"\u003evacuum tube buyers guide\u003c\/a\u003e\u003cspan\u003e \u003c\/span\u003eto determine which tubes are best for you. Likewise, you are welcome to reach out to us directly at\u003cspan\u003e \u003c\/span\u003e\u003ca href=\"mailto:Support@FuzzAudio.com\" target=\"_blank\"\u003eSupport@FuzzAudio.com\u003c\/a\u003e\u003cspan\u003e \u003c\/span\u003eor by using our chat located on our shop page if you have further questions.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eNOS vs. ANOS vs. Test NOS\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eThese designations are strictly used to describe the cosmetic condition of our tubes. All tubes we sell test identically, come with 100% life and are guaranteed to work in your device!\u003c\/p\u003e\n\u003cp\u003eIf you are picky about owning an original box or wanting a specific logo please reach out to us\u003cspan\u003e \u003c\/span\u003e\u003cu\u003ebefore purchasing.\u003c\/u\u003e\u003c\/p\u003e\n\u003col\u003e\n\u003cli\u003e\n\u003cstrong\u003eNOS (New Old Stock) Tubes-\u003cspan\u003e \u003c\/span\u003e\u003c\/strong\u003eare 100% brand new vintage tubes in mint cosmetic condition with show zero signs of use. You should expect a legible logo and clean straight pins. An original box is likely but not guaranteed. \u003c\/li\u003e\n\u003c\/ol\u003e\n\u003col start=\"2\"\u003e\n\u003cli\u003e\n\u003cstrong\u003e\u003c\/strong\u003e\u003cstrong\u003eANOS Tubes-\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eotherwise known as “almost new old stock” tubes are basically new, but may show slight signs of use in cosmetic condition, such as a missing logo or slightly bent pins. An original box is possible but unlikely.\u003cstrong\u003e \u003c\/strong\u003e\n\u003c\/li\u003e\n\u003c\/ol\u003e\n\u003col start=\"3\"\u003e\n\u003cli\u003e\n\u003cstrong\u003eTest NOS Tubes-\u003cspan\u003e \u003c\/span\u003e\u003c\/strong\u003eare used but still operating to specification with 100% life. These tubes are equal in function to NOS valves, yet they cost considerably less because they have cosmetic blemishes. If you plan to disappear your tubes into the back of an amplifier or do not care what the tubes look like, then this is cost effective choice. Blemishes and cosmetic imperfections do not affect tone…\u003c\/li\u003e\n\u003c\/ol\u003e\n\u003cp\u003e\u003cstrong\u003eLogos:\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eVintage tubes have a wide variety of logos printed on them. It is not uncommon to see a Mullard made tube with an RCA or GE logo, or a GE made tube with a Mullard logo. Your tube may come with a logo such are Heath Kit, Baldwin, Fisher, Hammond, Magnavox, Fender, Gibson, Silvertone, etc. but the true manufacturer of that tube will be correct to your order. If you are looking for a specific logo please reach out before purchase.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003e\u003c\/strong\u003e\u003cstrong\u003eOur Standards:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eAll tubes are tested for \u003cstrong\u003emicrophonics \u003c\/strong\u003eand are guaranteed to work in sensitive audio applications\u003c\/li\u003e\n\u003cli\u003eAll tubes sold are guaranteed to have strong (to spec) NOS test scores with 100% life\u003c\/li\u003e\n\u003cli\u003eAll tubes are tested on a calibrated Hickok 539C, Maxi-Matcher, E-Tracer or other industry standard tube analyzers\u003c\/li\u003e\n\u003cli\u003e\u003cstrong\u003eTubes are guaranteed for one year and can be returned within 30 days\u003c\/strong\u003e\u003c\/li\u003e\n\u003cli\u003ePreamp tubes matched by gain and mutual conductance (Gm)\u003c\/li\u003e\n\u003cli\u003ePower tubes matched by mA and Gm\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eDon’t forget to email\u003cspan\u003e \u003c\/span\u003e\u003ca href=\"mailto:Support@fuzzaudio.com\" target=\"_blank\"\u003eSupport@fuzzaudio.com\u003c\/a\u003e\u003cspan\u003e \u003c\/span\u003eor reach out to us via chat if you need help picking out valves for your device.\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e","brand":"Fuzz Audio","offers":[{"title":"Black Plate \/ NOS","offer_id":39572706983971,"sku":"RCAH7BPN","price":125.0,"currency_code":"USD","in_stock":false},{"title":"Black Plate \/ Tests NOS","offer_id":40892876226595,"sku":null,"price":85.0,"currency_code":"USD","in_stock":false},{"title":"Grey Plate \/ NOS","offer_id":39572707049507,"sku":"RCAH7N","price":80.0,"currency_code":"USD","in_stock":true},{"title":"Grey Plate \/ Tests NOS","offer_id":40892876259363,"sku":null,"price":65.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0275\/0699\/9331\/products\/rca-12bh7-nos-tubes-fuzz-audio-634233.jpg?v=1715467679"},{"product_id":"ge-12au7","title":"GE 12AU7","description":"\u003ch1 data-end=\"211\" data-start=\"174\"\u003eGE 12AU7 – Vintage American Warmth\u003c\/h1\u003e\n\u003cp data-end=\"497\" data-start=\"213\"\u003eThe \u003cstrong data-end=\"229\" data-start=\"217\"\u003eGE 12AU7\u003c\/strong\u003e is a cornerstone of classic American audio—quiet, reliable, and beautifully balanced. Originally built for demanding hi-fi, broadcast, and industrial applications, vintage GE 12AU7 tubes are prized for their \u003cstrong data-end=\"496\" data-start=\"438\"\u003ewarm midrange, smooth top end, and excellent longevity\u003c\/strong\u003e.\u003c\/p\u003e\n\u003cp data-end=\"721\" data-start=\"499\"\u003eCompared to modern production tubes, true vintage GE glass offers \u003cstrong data-end=\"631\" data-start=\"565\"\u003elower noise, better consistency, and richer harmonic structure\u003c\/strong\u003e, thanks to superior materials and tighter quality control from GE’s golden-era factories.\u003c\/p\u003e\n\u003cp data-end=\"894\" data-start=\"723\"\u003eAt Fuzz Audio, we stock \u003cstrong data-end=\"794\" data-start=\"747\"\u003eauthentic vintage GE 12AU7 grey plate tubes\u003c\/strong\u003e, available in both \u003cstrong data-end=\"858\" data-start=\"814\"\u003eshort-plate and long-plate constructions\u003c\/strong\u003e, each with its own sonic character.\u003c\/p\u003e\n\u003ch2 data-end=\"956\" data-start=\"901\"\u003eShort Plate vs Long Plate – Which Should You Choose?\u003c\/h2\u003e\n\u003cp\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0275\/0699\/9331\/files\/ChatGPTImageJan8_2026_11_01_53AM.png?v=1767895361\" alt=\"\"\u003e\u003c\/p\u003e\n\u003ch3\u003e\u003cstrong\u003eNeed help deciding what tubes are best for you?\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cp\u003eUse our\u003cspan\u003e \u003c\/span\u003e\u003ca href=\"https:\/\/fuzzaudio.com\/vacuum-tubes-plate-cheat-sheet-fuzz-audio\" target=\"_blank\"\u003eplate cheat sheet\u003c\/a\u003e\u003cspan\u003e \u003c\/span\u003eand\u003cspan\u003e \u003c\/span\u003e\u003ca href=\"https:\/\/fuzzaudio.com\/category\/tube-buyers-guide\" target=\"_blank\"\u003evacuum tube buyers guide\u003c\/a\u003e\u003cspan\u003e \u003c\/span\u003eto determine which tubes are best for you. Likewise, you are welcome to reach out to us directly at\u003cspan\u003e \u003c\/span\u003e\u003ca href=\"mailto:Support@FuzzAudio.com\" target=\"_blank\"\u003eSupport@FuzzAudio.com\u003c\/a\u003e\u003cspan\u003e \u003c\/span\u003eor by using our chat located on our shop page if you have further questions.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eNOS vs. ANOS vs. Test NOS\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eThese designations are strictly used to describe the cosmetic condition of our tubes. All tubes we sell test identically, come with 100% life and are guaranteed to work in your device!\u003c\/p\u003e\n\u003cp\u003eIf you are picky about owning an original box or wanting a specific logo please reach out to us\u003cspan\u003e \u003c\/span\u003e\u003cu\u003ebefore purchasing.\u003c\/u\u003e\u003c\/p\u003e\n\u003col\u003e\n\u003cli\u003e\n\u003cstrong\u003eNOS (New Old Stock) Tubes-\u003cspan\u003e \u003c\/span\u003e\u003c\/strong\u003eare 100% brand new vintage tubes in mint cosmetic condition with show zero signs of use. You should expect a legible logo and clean straight pins. An original box is likely but not guaranteed. \u003c\/li\u003e\n\u003c\/ol\u003e\n\u003col start=\"2\"\u003e\n\u003cli\u003e\n\u003cstrong\u003e\u003c\/strong\u003e\u003cstrong\u003eANOS Tubes-\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eotherwise known as “almost new old stock” tubes are basically new, but may show slight signs of use in cosmetic condition, such as a missing logo or slightly bent pins. An original box is possible but unlikely.\u003cstrong\u003e \u003c\/strong\u003e\n\u003c\/li\u003e\n\u003c\/ol\u003e\n\u003col start=\"3\"\u003e\n\u003cli\u003e\n\u003cstrong\u003eTest NOS Tubes-\u003cspan\u003e \u003c\/span\u003e\u003c\/strong\u003eare used but still operating to specification with 100% life. These tubes are equal in function to NOS valves, yet they cost considerably less because they have cosmetic blemishes. If you plan to disappear your tubes into the back of an amplifier or do not care what the tubes look like, then this is cost effective choice. Blemishes and cosmetic imperfections do not affect tone…\u003c\/li\u003e\n\u003c\/ol\u003e\n\u003cp\u003e\u003cstrong\u003eLogos:\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eVintage tubes have a wide variety of logos printed on them. It is not uncommon to see a Mullard made tube with an RCA or GE logo, or a GE made tube with a Mullard logo. Your tube may come with a logo such are Heath Kit, Baldwin, Fisher, Hammond, Magnavox, Fender, Gibson, Silvertone, etc. but the true manufacturer of that tube will be correct to your order. If you are looking for a specific logo please reach out before purchase.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003e\u003c\/strong\u003e\u003cstrong\u003eOur Standards:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eAll tubes are tested for \u003cstrong\u003emicrophonics \u003c\/strong\u003eand are guaranteed to work in sensitive audio applications\u003c\/li\u003e\n\u003cli\u003eAll tubes sold are guaranteed to have strong (to spec) NOS test scores with 100% life\u003c\/li\u003e\n\u003cli\u003eAll tubes are tested on a calibrated Hickok 539C, Maxi-Matcher, E-Tracer or other industry standard tube analyzers\u003c\/li\u003e\n\u003cli\u003e\u003cstrong\u003eTubes are guaranteed for one year and can be returned within 30 days\u003c\/strong\u003e\u003c\/li\u003e\n\u003cli\u003ePreamp tubes matched by gain and mutual conductance (Gm)\u003c\/li\u003e\n\u003cli\u003ePower tubes matched by mA and Gm\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eDon’t forget to email\u003cspan\u003e \u003c\/span\u003e\u003ca href=\"mailto:Support@fuzzaudio.com\" target=\"_blank\"\u003eSupport@fuzzaudio.com\u003c\/a\u003e\u003cspan\u003e \u003c\/span\u003eor reach out to us via chat if you need help picking out valves for your device.\u003c\/p\u003e","brand":"Fuzz Audio","offers":[{"title":"Short Plate \/ NOS","offer_id":32253162717219,"sku":"","price":40.0,"currency_code":"USD","in_stock":true},{"title":"Short Plate \/ Tests NOS","offer_id":41857072791587,"sku":null,"price":25.0,"currency_code":"USD","in_stock":true},{"title":"Long Plate \/ NOS","offer_id":41857072824355,"sku":null,"price":45.0,"currency_code":"USD","in_stock":false},{"title":"Long Plate \/ Tests NOS","offer_id":41857072857123,"sku":null,"price":30.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0275\/0699\/9331\/products\/ge-12au7ecc82-nos-tubes-fuzz-audio-779179.jpg?v=1767892610"},{"product_id":"tung-sol-5881","title":"Tung-Sol 5881 (6L6WGB)","description":"\u003ch2 data-start=\"0\" data-end=\"52\"\u003eTung-Sol 5881 Brown Base – Vintage USA Power Tube\u003c\/h2\u003e\n\u003cp data-start=\"54\" data-end=\"325\"\u003eThe \u003cstrong data-start=\"58\" data-end=\"86\"\u003eTung-Sol 5881 brown base\u003c\/strong\u003e is a rugged American-made power tube from the golden era of U.S. production. Originally built for military and industrial use, the 5881 is a durable member of the 6L6 family known for its reliability, long life, and strong, balanced tone.\u003c\/p\u003e\n\u003cp data-start=\"327\" data-end=\"663\"\u003eTonally, the brown base Tung-Sol 5881 is warm, powerful, and dynamic. It delivers solid low-end weight, rich mids, and a smooth but controlled top end. These tubes respond well to playing dynamics and maintain clarity even when pushed. Built to run hard, they’re known to last thousands of hours while holding their operating stability.\u003c\/p\u003e\n\u003cp data-start=\"665\" data-end=\"752\"\u003eIn its class, the brown base 5881 is rarely matched in durability and musical response.\u003c\/p\u003e\n\u003chr data-start=\"754\" data-end=\"757\"\u003e\n\u003ch2 data-start=\"759\" data-end=\"779\"\u003eWe Match for Free\u003c\/h2\u003e\n\u003cp data-start=\"781\" data-end=\"861\"\u003eAll Tung-Sol 5881s are fully tested and professionally matched at no extra cost.\u003c\/p\u003e\n\u003cp data-start=\"863\" data-end=\"877\"\u003eEvery tube is:\u003c\/p\u003e\n\u003cul data-start=\"879\" data-end=\"1016\"\u003e\n\u003cli data-start=\"879\" data-end=\"925\"\u003e\n\u003cp data-start=\"881\" data-end=\"925\"\u003eTested for emission and mutual conductance\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"926\" data-end=\"979\"\u003e\n\u003cp data-start=\"928\" data-end=\"979\"\u003eScreened for shorts and proper operating function\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"980\" data-end=\"1016\"\u003e\n\u003cp data-start=\"982\" data-end=\"1016\"\u003eVerified for noise and stability\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp data-start=\"1018\" data-end=\"1146\"\u003eMatched pairs and matched quads (including sets of four) are available with no upcharge. No guessing. No inflated matching fees.\u003c\/p\u003e\n\u003chr data-start=\"1148\" data-end=\"1151\"\u003e\n\u003ch2 data-start=\"1153\" data-end=\"1173\"\u003eCurrent Inventory\u003c\/h2\u003e\n\u003cp data-start=\"1175\" data-end=\"1197\"\u003eOur stock consists of:\u003c\/p\u003e\n\u003cul data-start=\"1199\" data-end=\"1319\"\u003e\n\u003cli data-start=\"1199\" data-end=\"1234\"\u003e\n\u003cp data-start=\"1201\" data-end=\"1234\"\u003eGenuine \u003cstrong data-start=\"1209\" data-end=\"1232\"\u003eNOS (New Old Stock)\u003c\/strong\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"1235\" data-end=\"1264\"\u003e\n\u003cp data-start=\"1237\" data-end=\"1264\"\u003eClean military production\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"1265\" data-end=\"1319\"\u003e\n\u003cp data-start=\"1267\" data-end=\"1319\"\u003eOriginal logo variations (cosmetic differences only)\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp data-start=\"1321\" data-end=\"1376\"\u003eAll tubes test strong and are verified before shipping.\u003c\/p\u003e\n\u003cp data-start=\"1378\" data-end=\"1431\"\u003eStock is extremely limited. First come, first served.\u003c\/p\u003e\n\u003chr data-start=\"1433\" data-end=\"1436\"\u003e\n\u003ch2 data-start=\"1438\" data-end=\"1460\"\u003eCommon Applications\u003c\/h2\u003e\n\u003cp data-start=\"1462\" data-end=\"1492\"\u003eThe 5881 is commonly found in:\u003c\/p\u003e\n\u003cul data-start=\"1494\" data-end=\"1670\"\u003e\n\u003cli data-start=\"1494\" data-end=\"1523\"\u003e\n\u003cp data-start=\"1496\" data-end=\"1523\"\u003eVintage Fender amplifiers\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"1524\" data-end=\"1562\"\u003e\n\u003cp data-start=\"1526\" data-end=\"1562\"\u003eTweed and early blackface circuits\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"1563\" data-end=\"1617\"\u003e\n\u003cp data-start=\"1565\" data-end=\"1617\"\u003eSelect American-voiced amps using 6L6-family tubes\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"1618\" data-end=\"1670\"\u003e\n\u003cp data-start=\"1620\" data-end=\"1670\"\u003eHi-fi power amplifiers designed around 6L6 types\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp data-start=\"1672\" data-end=\"1774\"\u003eIf you’re unsure whether a 5881 is right for your amplifier, feel free to reach out before purchasing.\u003c\/p\u003e\n\u003chr data-start=\"1776\" data-end=\"1779\"\u003e\n\u003cp data-start=\"1781\" data-end=\"1885\" data-is-last-node=\"\" data-is-only-node=\"\"\u003eSerious vintage American power tubes. Properly tested. Properly matched.\u003cbr data-start=\"1853\" data-end=\"1856\"\u003eAvailable while supply lasts.\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e","brand":"Fuzz Audio","offers":[{"title":"NOS","offer_id":32353611546659,"sku":"","price":130.0,"currency_code":"USD","in_stock":false},{"title":"Tests NOS","offer_id":41905144889379,"sku":null,"price":85.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0275\/0699\/9331\/products\/tung-sol-5881-nos-tubes-fuzz-audio-137926.jpg?v=1597428161"},{"product_id":"sylvania-12au7","title":"Sylvania 12AU7","description":"\u003cp\u003eYou won't find better bang for your buck. If you have a need for a 12AU7 or simply looking to have some fun tube rolling our collection of NOS Sylvania 12AU7 should be considered!\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eNote:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eTry swapping in 12AU7's in place of 12AX7's in Fender tweed and tweed clones for interesting tonal results!\u003cbr\u003e\u003c\/p\u003e\n\u003ch3\u003e\u003cstrong\u003eNeed help deciding what tubes are best for you?\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cp\u003eUse our\u003cspan\u003e \u003c\/span\u003e\u003ca href=\"https:\/\/fuzzaudio.com\/vacuum-tubes-plate-cheat-sheet-fuzz-audio\" target=\"_blank\"\u003eplate cheat sheet\u003c\/a\u003e\u003cspan\u003e \u003c\/span\u003eand\u003cspan\u003e \u003c\/span\u003e\u003ca href=\"https:\/\/fuzzaudio.com\/category\/tube-buyers-guide\" target=\"_blank\"\u003evacuum tube buyers guide\u003c\/a\u003e\u003cspan\u003e \u003c\/span\u003eto determine which tubes are best for you. Likewise, you are welcome to reach out to us directly at\u003cspan\u003e \u003c\/span\u003e\u003ca href=\"mailto:Support@FuzzAudio.com\" target=\"_blank\"\u003eSupport@FuzzAudio.com\u003c\/a\u003e\u003cspan\u003e \u003c\/span\u003eor by using our chat located on our shop page if you have further questions.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eNOS vs. ANOS vs. Test NOS\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eThese designations are strictly used to describe the cosmetic condition of our tubes. All tubes we sell test identically, come with 100% life and are guaranteed to work in your device!\u003c\/p\u003e\n\u003cp\u003eIf you are picky about owning an original box or wanting a specific logo please reach out to us\u003cspan\u003e \u003c\/span\u003e\u003cu\u003ebefore purchasing.\u003c\/u\u003e\u003c\/p\u003e\n\u003col\u003e\n\u003cli\u003e\n\u003cstrong\u003eNOS (New Old Stock) Tubes-\u003cspan\u003e \u003c\/span\u003e\u003c\/strong\u003eare 100% brand new vintage tubes in mint cosmetic condition with show zero signs of use. You should expect a legible logo and clean straight pins. An original box is likely but not guaranteed. \u003c\/li\u003e\n\u003c\/ol\u003e\n\u003col start=\"2\"\u003e\n\u003cli\u003e\n\u003cstrong\u003e\u003c\/strong\u003e\u003cstrong\u003eANOS Tubes-\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eotherwise known as “almost new old stock” tubes are basically new, but may show slight signs of use in cosmetic condition, such as a missing logo or slightly bent pins. An original box is possible but unlikely.\u003cstrong\u003e \u003c\/strong\u003e\n\u003c\/li\u003e\n\u003c\/ol\u003e\n\u003col start=\"3\"\u003e\n\u003cli\u003e\n\u003cstrong\u003eTest NOS Tubes-\u003cspan\u003e \u003c\/span\u003e\u003c\/strong\u003eare used but still operating to specification with 100% life. These tubes are equal in function to NOS valves, yet they cost considerably less because they have cosmetic blemishes. If you plan to disappear your tubes into the back of an amplifier or do not care what the tubes look like, then this is cost effective choice. Blemishes and cosmetic imperfections do not affect tone…\u003c\/li\u003e\n\u003c\/ol\u003e\n\u003cp\u003e\u003cstrong\u003eLogos:\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eVintage tubes were have a wide variety of logos printed on them. It is not uncommon to see a Mullard made tube with an RCA or GE logo, or a GE made tube with a Mullard logo. Your tube may come with a logo such are Heath Kit, Baldwin, Fisher, Hammond, Magnavox, Fender, Gibson, Silvertone, etc. but the true manufacturer of that tube will be correct to your order. If you are looking for a specific logo please reach out before purchase.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003e\u003c\/strong\u003e\u003cstrong\u003eOur Standards:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eAll tubes are tested for \u003cstrong\u003emicrophonics \u003c\/strong\u003eand are guaranteed to work in sensitive audio applications\u003c\/li\u003e\n\u003cli\u003eAll tubes sold are guaranteed to have strong (to spec) NOS test scores with 100% life\u003c\/li\u003e\n\u003cli\u003eAll tubes are tested on a calibrated Hickok 539C, Maxi-Matcher, E-Tracer or other industry standard tube analyzers\u003c\/li\u003e\n\u003cli\u003e\u003cstrong\u003eTubes are guaranteed for one year and can be returned within 30 days\u003c\/strong\u003e\u003c\/li\u003e\n\u003cli\u003ePreamp tubes matched by gain and mutual conductance (Gm)\u003c\/li\u003e\n\u003cli\u003ePower tubes matched by mA and Gm\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eDon’t forget to email\u003cspan\u003e \u003c\/span\u003e\u003ca href=\"mailto:Support@fuzzaudio.com\"\u003eSupport@fuzzaudio.com\u003c\/a\u003e\u003cspan\u003e \u003c\/span\u003eor reach out to us via chat if you need help picking out valves for your device.\u003c\/p\u003e","brand":"Fuzz Audio","offers":[{"title":"Long Plate (NOS)","offer_id":39544907890723,"sku":"","price":25.0,"currency_code":"USD","in_stock":true},{"title":"Long Plate (Test NOS)","offer_id":39544907923491,"sku":"","price":20.0,"currency_code":"USD","in_stock":true},{"title":"Short Plate (NOS)","offer_id":39613764206627,"sku":"","price":20.0,"currency_code":"USD","in_stock":true},{"title":"Short Plate (Test NOS)","offer_id":39613764239395,"sku":"","price":15.0,"currency_code":"USD","in_stock":true},{"title":"Black Long Plate (NOS)","offer_id":39613764272163,"sku":"","price":50.0,"currency_code":"USD","in_stock":false},{"title":"Black Long Plate (Test NOS)","offer_id":39544907956259,"sku":"","price":45.0,"currency_code":"USD","in_stock":true},{"title":"Black Short Plate (Test NOS)","offer_id":39544907989027,"sku":"","price":40.0,"currency_code":"USD","in_stock":false},{"title":"JAN Black Plate (Test NOS)","offer_id":39613764304931,"sku":"","price":55.0,"currency_code":"USD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0275\/0699\/9331\/products\/sylvania-12au7-nos-tubes-fuzz-audio-108829.jpg?v=1625271512"},{"product_id":"6v6gty-brown-base","title":"6V6GTY Brown Base","description":"\u003cp\u003eBrown Base 6V6GTY are rugged, sturdy and built to last thousands of hours. These tubes are perfect for a touring musician who wants to ensure their amp is gig ready. \u003c\/p\u003e\n\u003cbr\u003e\n\u003ch3\u003e\u003cstrong\u003eNeed help deciding what tubes are best for you?\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cp\u003eUse our\u003cspan\u003e \u003c\/span\u003e\u003ca href=\"https:\/\/fuzzaudio.com\/vacuum-tubes-plate-cheat-sheet-fuzz-audio\" target=\"_blank\"\u003eplate cheat sheet\u003c\/a\u003e\u003cspan\u003e \u003c\/span\u003eand\u003cspan\u003e \u003c\/span\u003e\u003ca href=\"https:\/\/fuzzaudio.com\/category\/tube-buyers-guide\" target=\"_blank\"\u003evacuum tube buyers guide\u003c\/a\u003e\u003cspan\u003e \u003c\/span\u003eto determine which tubes are best for you. Likewise, you are welcome to reach out to us directly at\u003cspan\u003e \u003c\/span\u003e\u003ca href=\"mailto:Support@FuzzAudio.com\" target=\"_blank\"\u003eSupport@FuzzAudio.com\u003c\/a\u003e\u003cspan\u003e \u003c\/span\u003eor by using our chat located on our shop page if you have further questions.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eNOS vs. ANOS vs. Test NOS\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eThese designations are strictly used to describe the cosmetic condition of our tubes. All tubes we sell test identically, come with 100% life and are guaranteed to work in your device!\u003c\/p\u003e\n\u003cp\u003eIf you are picky about owning an original box or wanting a specific logo please reach out to us\u003cspan\u003e \u003c\/span\u003e\u003cu\u003ebefore purchasing.\u003c\/u\u003e\u003c\/p\u003e\n\u003col\u003e\n\u003cli\u003e\n\u003cstrong\u003eNOS (New Old Stock) Tubes-\u003cspan\u003e \u003c\/span\u003e\u003c\/strong\u003eare 100% brand new vintage tubes in mint cosmetic condition with show zero signs of use. You should expect a legible logo and clean straight pins. An original box is likely but not guaranteed. \u003c\/li\u003e\n\u003c\/ol\u003e\n\u003col start=\"2\"\u003e\n\u003cli\u003e\n\u003cstrong\u003e\u003c\/strong\u003e\u003cstrong\u003eANOS Tubes-\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eotherwise known as “almost new old stock” tubes are basically new, but may show slight signs of use in cosmetic condition, such as a missing logo or slightly bent pins. An original box is possible but unlikely.\u003cstrong\u003e \u003c\/strong\u003e\n\u003c\/li\u003e\n\u003c\/ol\u003e\n\u003col start=\"3\"\u003e\n\u003cli\u003e\n\u003cstrong\u003eTest NOS Tubes-\u003cspan\u003e \u003c\/span\u003e\u003c\/strong\u003eare used but still operating to specification with 100% life. These tubes are equal in function to NOS valves, yet they cost considerably less because they have cosmetic blemishes. If you plan to disappear your tubes into the back of an amplifier or do not care what the tubes look like, then this is cost effective choice. Blemishes and cosmetic imperfections do not affect tone…\u003c\/li\u003e\n\u003c\/ol\u003e\n\u003cp\u003e\u003cstrong\u003eLogos:\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eVintage tubes have a wide variety of logos printed on them. It is not uncommon to see a Mullard made tube with an RCA or GE logo, or a GE made tube with a Mullard logo. Your tube may come with a logo such are Heath Kit, Baldwin, Fisher, Hammond, Magnavox, Fender, Gibson, Silvertone, etc. but the true manufacturer of that tube will be correct to your order. If you are looking for a specific logo please reach out before purchase.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003e\u003c\/strong\u003e\u003cstrong\u003eOur Standards:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eAll tubes are tested for \u003cstrong\u003emicrophonics \u003c\/strong\u003eand are guaranteed to work in sensitive audio applications\u003c\/li\u003e\n\u003cli\u003eAll tubes sold are guaranteed to have strong (to spec) NOS test scores with 100% life\u003c\/li\u003e\n\u003cli\u003eAll tubes are tested on a calibrated Hickok 539C, Maxi-Matcher, E-Tracer or other industry standard tube analyzers\u003c\/li\u003e\n\u003cli\u003e\u003cstrong\u003eTubes are guaranteed for one year and can be returned within 30 days\u003c\/strong\u003e\u003c\/li\u003e\n\u003cli\u003ePreamp tubes matched by gain and mutual conductance (Gm)\u003c\/li\u003e\n\u003cli\u003ePower tubes matched by mA and Gm\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eDon’t forget to email\u003cspan\u003e \u003c\/span\u003e\u003ca href=\"mailto:Support@fuzzaudio.com\" target=\"_blank\"\u003eSupport@fuzzaudio.com\u003c\/a\u003e\u003cspan\u003e \u003c\/span\u003eor reach out to us via chat if you need help picking out valves for your device.\u003c\/p\u003e","brand":"Fuzz Audio","offers":[{"title":"JAN","offer_id":32335096315939,"sku":"JAN6V6BB","price":50.0,"currency_code":"USD","in_stock":false},{"title":"RCA","offer_id":32335096348707,"sku":"RCA6V6BB","price":59.0,"currency_code":"USD","in_stock":false},{"title":"GE","offer_id":32335096381475,"sku":"GE6V6BB","price":50.0,"currency_code":"USD","in_stock":false},{"title":"Raytheon","offer_id":39246743404579,"sku":"","price":60.0,"currency_code":"USD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0275\/0699\/9331\/products\/6v6gty-brown-base-nos-tubes-fuzz-audio-517873.jpg?v=1720653486"},{"product_id":"usa-6973","title":"RCA 6973","description":"\u003cp\u003eRare USA 6973. Great for any application. Twice tested on Hickok tube testers \u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003eCurrently have RCA grey and BLACK PLATES in stock in very limited supply! \u003c\/p\u003e","brand":"Fuzz Audio","offers":[{"title":"RCA 6973","offer_id":32338389696547,"sku":"","price":100.0,"currency_code":"USD","in_stock":false},{"title":"RCA Black Plate 6973","offer_id":32911371927587,"sku":"","price":119.0,"currency_code":"USD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0275\/0699\/9331\/products\/rca-6973-nos-tubes-fuzz-audio-691481.jpg?v=1715467340"},{"product_id":"rca-12at7","title":"RCA 12AT7","description":"\u003cdiv class=\"text-base my-auto mx-auto pb-10 [--thread-content-margin:--spacing(4)] @[37rem]:[--thread-content-margin:--spacing(6)] @[72rem]:[--thread-content-margin:--spacing(16)] px-(--thread-content-margin)\"\u003e\n\u003cdiv class=\"[--thread-content-max-width:32rem] @[34rem]:[--thread-content-max-width:40rem] @[64rem]:[--thread-content-max-width:48rem] mx-auto flex max-w-(--thread-content-max-width) flex-1 text-base gap-4 md:gap-5 lg:gap-6 group\/turn-messages focus-visible:outline-hidden\" tabindex=\"-1\"\u003e\n\u003cdiv class=\"group\/conversation-turn relative flex w-full min-w-0 flex-col agent-turn\"\u003e\n\u003cdiv class=\"relative flex-col gap-1 md:gap-3\"\u003e\n\u003cdiv class=\"flex max-w-full flex-col grow\"\u003e\n\u003cdiv data-message-model-slug=\"gpt-4o\" class=\"min-h-8 text-message relative flex w-full flex-col items-end gap-2 text-start break-words whitespace-normal [.text-message+\u0026amp;]:mt-5\" dir=\"auto\" data-message-id=\"32c966b2-b178-4ba2-becc-7cd97bb869cf\" data-message-author-role=\"assistant\"\u003e\n\u003cdiv class=\"flex w-full flex-col gap-1 empty:hidden first:pt-[3px]\"\u003e\n\u003cdiv class=\"markdown prose dark:prose-invert w-full break-words dark\"\u003e\n\u003ch1 data-end=\"123\" data-start=\"0\"\u003e\n\u003cstrong data-end=\"54\" data-start=\"0\"\u003eRCA 12AT7 – Black or Grey Plate – NOS Vintage Tube\u003c\/strong\u003e\u003cbr data-end=\"57\" data-start=\"54\"\u003e\u003cem data-end=\"123\" data-start=\"57\"\u003e\u003c\/em\u003e\n\u003c\/h1\u003e\n\u003ch3 data-end=\"123\" data-start=\"0\"\u003e\u003cem data-end=\"123\" data-start=\"57\"\u003eIdeal for Fender amps, reverb drivers, phase inverters, and more!\u003c\/em\u003e\u003c\/h3\u003e\n\u003cp data-end=\"337\" data-start=\"125\"\u003eThe RCA 12AT7 is a classic American preamp tube with the punch, clarity, and reliability that made RCA a legend. Whether you're chasing lush Fender reverb or tight, articulate phase inversion, this tube delivers.\u003c\/p\u003e\n\u003cp data-end=\"365\" data-start=\"339\"\u003eChoose your plate style:\u003c\/p\u003e\n\u003cul data-end=\"560\" data-start=\"366\"\u003e\n\u003cli data-end=\"461\" data-start=\"366\"\u003e\n\u003cp data-end=\"461\" data-start=\"368\"\u003e\u003cstrong data-end=\"383\" data-start=\"368\"\u003eBlack plate\u003c\/strong\u003e: Warmer and smoother, with a vintage character that rounds out harsh edges.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-end=\"560\" data-start=\"462\"\u003e\n\u003cp data-end=\"560\" data-start=\"464\"\u003e\u003cstrong data-end=\"478\" data-start=\"464\"\u003eGrey plate\u003c\/strong\u003e: More focused and detailed—great for precision and bite without sounding sterile.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp data-end=\"680\" data-start=\"562\"\u003ePerfect for reverb driver circuits and phase inverters in amps like the Fender Deluxe Reverb, Twin Reverb, and others.\u003c\/p\u003e\n\u003cp data-is-only-node=\"\" data-is-last-node=\"\" data-end=\"778\" data-start=\"682\"\u003e\u003cstrong data-end=\"717\" data-start=\"682\"\u003eNOS, tested, and tone-approved.\u003c\/strong\u003e\u003cbr data-end=\"720\" data-start=\"717\"\u003e\u003c\/p\u003e\n\u003cp data-is-only-node=\"\" data-is-last-node=\"\" data-end=\"778\" data-start=\"682\"\u003e\u003cstrong\u003eNeed help deciding what tubes are best for you?\u003c\/strong\u003e\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cp\u003eUse our\u003cspan\u003e \u003c\/span\u003e\u003ca href=\"https:\/\/fuzzaudio.com\/vacuum-tubes-plate-cheat-sheet-fuzz-audio\" target=\"_blank\"\u003eplate cheat sheet\u003c\/a\u003e\u003cspan\u003e \u003c\/span\u003eand\u003cspan\u003e \u003c\/span\u003e\u003ca href=\"https:\/\/fuzzaudio.com\/category\/tube-buyers-guide\" target=\"_blank\"\u003evacuum tube buyers guide\u003c\/a\u003e\u003cspan\u003e \u003c\/span\u003eto determine which tubes are best for you. Likewise, you are welcome to reach out to us directly at\u003cspan\u003e \u003c\/span\u003e\u003ca href=\"mailto:Support@FuzzAudio.com\" target=\"_blank\"\u003eSupport@FuzzAudio.com\u003c\/a\u003e\u003cspan\u003e \u003c\/span\u003eor by using our chat located on our shop page if you have further questions.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eNOS vs. ANOS vs. Test NOS\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eThese designations are strictly used to describe the cosmetic condition of our tubes. All tubes we sell test identically, come with 100% life and are guaranteed to work in your device!\u003c\/p\u003e\n\u003cp\u003eIf you are picky about owning an original box or wanting a specific logo please reach out to us\u003cspan\u003e \u003c\/span\u003e\u003cu\u003ebefore purchasing.\u003c\/u\u003e\u003c\/p\u003e\n\u003col\u003e\n\u003cli\u003e\n\u003cstrong\u003eNOS (New Old Stock) Tubes-\u003cspan\u003e \u003c\/span\u003e\u003c\/strong\u003eare 100% brand new vintage tubes in mint cosmetic condition with show zero signs of use. You should expect a legible logo and clean straight pins. An original box is likely but not guaranteed. \u003c\/li\u003e\n\u003c\/ol\u003e\n\u003col start=\"2\"\u003e\n\u003cli\u003e\n\u003cstrong\u003e\u003c\/strong\u003e\u003cstrong\u003eANOS Tubes-\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eotherwise known as “almost new old stock” tubes are basically new, but may show slight signs of use in cosmetic condition, such as a missing logo or slightly bent pins. An original box is possible but unlikely.\u003cstrong\u003e \u003c\/strong\u003e\n\u003c\/li\u003e\n\u003c\/ol\u003e\n\u003col start=\"3\"\u003e\n\u003cli\u003e\n\u003cstrong\u003eTest NOS Tubes-\u003cspan\u003e \u003c\/span\u003e\u003c\/strong\u003eare used but still operating to specification with 100% life. These tubes are equal in function to NOS valves, yet they cost considerably less because they have cosmetic blemishes. If you plan to disappear your tubes into the back of an amplifier or do not care what the tubes look like, then this is cost effective choice. Blemishes and cosmetic imperfections do not affect tone…\u003c\/li\u003e\n\u003c\/ol\u003e\n\u003cp\u003e\u003cstrong\u003eLogos:\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eVintage tubes have a wide variety of logos printed on them. It is not uncommon to see a Mullard made tube with an RCA or GE logo, or a GE made tube with a Mullard logo. Your tube may come with a logo such are Heath Kit, Baldwin, Fisher, Hammond, Magnavox, Fender, Gibson, Silvertone, etc. but the true manufacturer of that tube will be correct to your order. If you are looking for a specific logo please reach out before purchase.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003e\u003c\/strong\u003e\u003cstrong\u003eOur Standards:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eAll tubes are tested for \u003cstrong\u003emicrophonics \u003c\/strong\u003eand are guaranteed to work in sensitive audio applications\u003c\/li\u003e\n\u003cli\u003eAll tubes sold are guaranteed to have strong (to spec) NOS test scores with 100% life\u003c\/li\u003e\n\u003cli\u003eAll tubes are tested on a calibrated Hickok 539C, Maxi-Matcher, E-Tracer or other industry standard tube analyzers\u003c\/li\u003e\n\u003cli\u003e\u003cstrong\u003eTubes are guaranteed for one year and can be returned within 30 days\u003c\/strong\u003e\u003c\/li\u003e\n\u003cli\u003ePreamp tubes matched by gain and mutual conductance (Gm)\u003c\/li\u003e\n\u003cli\u003ePower tubes matched by mA and Gm\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eDon’t forget to email\u003cspan\u003e \u003c\/span\u003e\u003ca href=\"mailto:Support@fuzzaudio.com\" target=\"_blank\"\u003eSupport@fuzzaudio.com\u003c\/a\u003e\u003cspan\u003e \u003c\/span\u003eor reach out to us via chat if you need help picking out valves for your device.\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003e\u003cbr\u003e\u003c\/span\u003e\u003c\/p\u003e","brand":"Fuzz Audio","offers":[{"title":"Grey Plate \/ NOS","offer_id":32364410667043,"sku":"","price":65.0,"currency_code":"USD","in_stock":false},{"title":"Grey Plate \/ Tests NOS","offer_id":40892882780195,"sku":null,"price":45.0,"currency_code":"USD","in_stock":false},{"title":"Black Plate \/ NOS","offer_id":39578163380259,"sku":"","price":75.0,"currency_code":"USD","in_stock":false},{"title":"Black Plate \/ Tests NOS","offer_id":40892882812963,"sku":null,"price":55.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0275\/0699\/9331\/products\/rca-12at7-ecc81-nos-tubes-fuzz-audio-834312.jpg?v=1715476912"},{"product_id":"tung-sol-6v6gt","title":"Tung-Sol 6V6GT","description":"\u003cp\u003eSuperb option for guitar amps, the Tung-Sol 6V6GT is long lasting and sturdy. Do not hesitate to add this tube to your collection. \u003c\/p\u003e\n\u003cp\u003eWe are sold out of matched pairs of this tube. \u003c\/p\u003e\n\u003ch3\u003e\u003cstrong\u003eNeed help deciding what tubes are best for you?\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cp\u003eUse our\u003cspan\u003e \u003c\/span\u003e\u003ca href=\"https:\/\/fuzzaudio.com\/vacuum-tubes-plate-cheat-sheet-fuzz-audio\" target=\"_blank\"\u003eplate cheat sheet\u003c\/a\u003e\u003cspan\u003e \u003c\/span\u003eand\u003cspan\u003e \u003c\/span\u003e\u003ca href=\"https:\/\/fuzzaudio.com\/category\/tube-buyers-guide\" target=\"_blank\"\u003evacuum tube buyers guide\u003c\/a\u003e\u003cspan\u003e \u003c\/span\u003eto determine which tubes are best for you. Likewise, you are welcome to reach out to us directly at\u003cspan\u003e \u003c\/span\u003e\u003ca href=\"mailto:Support@FuzzAudio.com\" target=\"_blank\"\u003eSupport@FuzzAudio.com\u003c\/a\u003e\u003cspan\u003e \u003c\/span\u003eor by using our chat located on our shop page if you have further questions.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eNOS vs. ANOS vs. Test NOS\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eThese designations are strictly used to describe the cosmetic condition of our tubes. All tubes we sell test identically, come with 100% life and are guaranteed to work in your device!\u003c\/p\u003e\n\u003cp\u003eIf you are picky about owning an original box or wanting a specific logo please reach out to us\u003cspan\u003e \u003c\/span\u003e\u003cu\u003ebefore purchasing.\u003c\/u\u003e\u003c\/p\u003e\n\u003col\u003e\n\u003cli\u003e\n\u003cstrong\u003eNOS (New Old Stock) Tubes-\u003cspan\u003e \u003c\/span\u003e\u003c\/strong\u003eare 100% brand new vintage tubes in mint cosmetic condition with show zero signs of use. You should expect a legible logo and clean straight pins. An original box is likely but not guaranteed. \u003c\/li\u003e\n\u003c\/ol\u003e\n\u003col start=\"2\"\u003e\n\u003cli\u003e\n\u003cstrong\u003e\u003c\/strong\u003e\u003cstrong\u003eANOS Tubes-\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eotherwise known as “almost new old stock” tubes are basically new, but may show slight signs of use in cosmetic condition, such as a missing logo or slightly bent pins. An original box is possible but unlikely.\u003cstrong\u003e \u003c\/strong\u003e\n\u003c\/li\u003e\n\u003c\/ol\u003e\n\u003col start=\"3\"\u003e\n\u003cli\u003e\n\u003cstrong\u003eTest NOS Tubes-\u003cspan\u003e \u003c\/span\u003e\u003c\/strong\u003eare used but still operating to specification with 100% life. These tubes are equal in function to NOS valves, yet they cost considerably less because they have cosmetic blemishes. If you plan to disappear your tubes into the back of an amplifier or do not care what the tubes look like, then this is cost effective choice. Blemishes and cosmetic imperfections do not affect tone…\u003c\/li\u003e\n\u003c\/ol\u003e\n\u003cp\u003e\u003cstrong\u003eLogos:\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eVintage tubes have a wide variety of logos printed on them. It is not uncommon to see a Mullard made tube with an RCA or GE logo, or a GE made tube with a Mullard logo. Your tube may come with a logo such are Heath Kit, Baldwin, Fisher, Hammond, Magnavox, Fender, Gibson, Silvertone, etc. but the true manufacturer of that tube will be correct to your order. If you are looking for a specific logo please reach out before purchase.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003e\u003c\/strong\u003e\u003cstrong\u003eOur Standards:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eAll tubes are tested for \u003cstrong\u003emicrophonics \u003c\/strong\u003eand are guaranteed to work in sensitive audio applications\u003c\/li\u003e\n\u003cli\u003eAll tubes sold are guaranteed to have strong (to spec) NOS test scores with 100% life\u003c\/li\u003e\n\u003cli\u003eAll tubes are tested on a calibrated Hickok 539C, Maxi-Matcher, E-Tracer or other industry standard tube analyzers\u003c\/li\u003e\n\u003cli\u003e\u003cstrong\u003eTubes are guaranteed for one year and can be returned within 30 days\u003c\/strong\u003e\u003c\/li\u003e\n\u003cli\u003ePreamp tubes matched by gain and mutual conductance (Gm)\u003c\/li\u003e\n\u003cli\u003ePower tubes matched by mA and Gm\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eDon’t forget to email\u003cspan\u003e \u003c\/span\u003e\u003ca href=\"mailto:Support@fuzzaudio.com\" target=\"_blank\"\u003eSupport@fuzzaudio.com\u003c\/a\u003e\u003cspan\u003e \u003c\/span\u003eor reach out to us via chat if you need help picking out valves for your device.\u003c\/p\u003e","brand":"Fuzz Audio","offers":[{"title":"NOS","offer_id":39687335870499,"sku":"","price":55.0,"currency_code":"USD","in_stock":false},{"title":"Test NOS","offer_id":39687335903267,"sku":"","price":44.0,"currency_code":"USD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0275\/0699\/9331\/products\/tung-sol-6v6gt-nos-tubes-fuzz-audio-288776.jpg?v=1715464200"},{"product_id":"rca-7199","title":"7199 (Options)","description":"\u003cp\u003eThe 7199 is a triode-pentode intended for use in hifi applications. The pentode section is for preamplifiers while the triode section is best used as a phase inverter. \u003c\/p\u003e\n\u003cp\u003eMost notably used in Dynaco ST-70's and vintage Ampeg amplifiers.\u003c\/p\u003e\n\u003cp\u003eThese are getting incredibly hard to find in NOS condition. Yet, the good thing is these are rugged and long living tube. A small handful should be enough for a lifetime supply.\u003c\/p\u003e","brand":"Fuzz Audio","offers":[{"title":"RCA","offer_id":33038926807075,"sku":"","price":70.0,"currency_code":"USD","in_stock":false},{"title":"USA (Tests NOS)","offer_id":33038926839843,"sku":"","price":50.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0275\/0699\/9331\/products\/7199-options-nos-tubes-fuzz-audio-720350.jpg?v=1720653372"},{"product_id":"deluxe-reverb-nos-tube-set","title":"Deluxe Reverb Retube Set","description":"\u003cdiv class=\"flex flex-col text-sm pb-25\"\u003e\n\u003carticle class=\"text-token-text-primary w-full focus:outline-none [--shadow-height:45px] has-data-writing-block:pointer-events-none has-data-writing-block:-mt-(--shadow-height) has-data-writing-block:pt-(--shadow-height) [\u0026amp;:has([data-writing-block])\u0026gt;*]:pointer-events-auto scroll-mt-[calc(var(--header-height)+min(200px,max(70px,20svh)))]\" dir=\"auto\" data-turn-id=\"8b394539-09ac-41c0-b29d-7e25cf4d8f00\" data-testid=\"conversation-turn-22\" data-scroll-anchor=\"true\" data-turn=\"assistant\" tabindex=\"-1\"\u003e\n\u003cdiv class=\"text-base my-auto mx-auto pb-10 [--thread-content-margin:--spacing(4)] @w-sm\/main:[--thread-content-margin:--spacing(6)] @w-lg\/main:[--thread-content-margin:--spacing(16)] px-(--thread-content-margin)\"\u003e\n\u003cdiv class=\"[--thread-content-max-width:40rem] @w-lg\/main:[--thread-content-max-width:48rem] mx-auto max-w-(--thread-content-max-width) flex-1 group\/turn-messages focus-visible:outline-hidden relative flex w-full min-w-0 flex-col agent-turn\" tabindex=\"-1\"\u003e\n\u003cdiv class=\"flex max-w-full flex-col grow\"\u003e\n\u003cdiv data-message-author-role=\"assistant\" data-message-id=\"691d7580-9d42-4bb1-abe0-fb9c679854b0\" dir=\"auto\" class=\"min-h-8 text-message relative flex w-full flex-col items-end gap-2 text-start break-words whitespace-normal [.text-message+\u0026amp;]:mt-1\" data-message-model-slug=\"gpt-5-2\"\u003e\n\u003cdiv class=\"flex w-full flex-col gap-1 empty:hidden first:pt-[1px]\"\u003e\n\u003cdiv class=\"markdown prose dark:prose-invert w-full wrap-break-word dark markdown-new-styling\"\u003e\n\u003ch2 data-end=\"209\" data-start=\"163\"\u003eFender Deluxe Reverb Tube Sets\u003c\/h2\u003e\n\u003cp data-end=\"240\" data-start=\"210\"\u003e\u003cstrong data-end=\"240\" data-start=\"210\"\u003eGE \u0026amp; RCA Vintage USA Tubes\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp data-end=\"562\" data-start=\"242\"\u003eThese \u003cstrong data-end=\"293\" data-start=\"248\"\u003eFender Deluxe Reverb tube sets\u003c\/strong\u003e are built exclusively with \u003cstrong data-end=\"356\" data-start=\"321\"\u003evintage GE and RCA vacuum tubes\u003c\/strong\u003e, two of the most important American manufacturers of the Fender golden era. These are the tubes that originally powered countless blackface and silverface amps, shaping the sound players still chase today.\u003c\/p\u003e\n\u003cp data-end=\"815\" data-start=\"564\"\u003eChosen specifically for Deluxe Reverb circuits, GE and RCA tubes are known for their consistency, low noise, and musical response. Expect clear, articulate cleans, lush reverb, smooth tremolo, and a natural transition into breakup without harsh edges.\u003c\/p\u003e\n\u003cp data-end=\"1070\" data-start=\"817\"\u003eAll tubes in these sets are \u003cstrong data-end=\"903\" data-start=\"872\"\u003eANOS (Almost New Old Stock)\u003c\/strong\u003e. ANOS examples may show light cosmetic signs of age or use—often worn logos or faint handling marks—but are electrically strong and test to NOS performance standards.\u003c\/p\u003e\n\u003chr data-end=\"1075\" data-start=\"1072\"\u003e\n\u003ch3 data-end=\"1099\" data-start=\"1077\"\u003ePlate Style \u0026amp; Tone\u003c\/h3\u003e\n\u003cp data-end=\"1170\" data-start=\"1101\"\u003eDifferent plate constructions influence how a Deluxe Reverb responds:\u003c\/p\u003e\n\u003cul data-end=\"1395\" data-start=\"1172\"\u003e\n\u003cli data-end=\"1246\" data-start=\"1172\"\u003e\n\u003cp data-end=\"1246\" data-start=\"1174\"\u003e\u003cstrong data-end=\"1190\" data-start=\"1174\"\u003eBlack plates\u003c\/strong\u003e – best for earlier breakup, warmth, and a softer feel\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-end=\"1315\" data-start=\"1247\"\u003e\n\u003cp data-end=\"1315\" data-start=\"1249\"\u003e\u003cstrong data-end=\"1265\" data-start=\"1249\"\u003eShort plates\u003c\/strong\u003e – best for clean headroom, focus, and low noise\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-end=\"1395\" data-start=\"1316\"\u003e\n\u003cp data-end=\"1395\" data-start=\"1318\"\u003e\u003cstrong data-end=\"1333\" data-start=\"1318\"\u003eLong plates\u003c\/strong\u003e – the best balance of clarity, depth, and harmonic richness\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp data-end=\"1483\" data-start=\"1397\"\u003ePlate styles are selected with intention based on how players actually use these amps.\u003c\/p\u003e\n\u003chr data-end=\"1488\" data-start=\"1485\"\u003e\n\u003ch3 data-end=\"1522\" data-start=\"1490\"\u003eWhat’s Included in Every Set\u003c\/h3\u003e\n\u003cp data-end=\"1617\" data-start=\"1524\"\u003eEach Deluxe Reverb tube set includes the correct vintage tube complement, all \u003cstrong data-end=\"1616\" data-start=\"1602\"\u003eGE and RCA\u003c\/strong\u003e:\u003c\/p\u003e\n\u003cul data-end=\"1746\" data-start=\"1619\"\u003e\n\u003cli data-end=\"1636\" data-start=\"1619\"\u003e\n\u003cp data-end=\"1636\" data-start=\"1621\"\u003e\u003cstrong data-end=\"1634\" data-start=\"1621\"\u003e4 × 12AX7\u003c\/strong\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-end=\"1706\" data-start=\"1637\"\u003e\n\u003cp data-end=\"1706\" data-start=\"1639\"\u003e\u003cstrong data-end=\"1652\" data-start=\"1639\"\u003e2 × 12AT7\u003c\/strong\u003e \u003cem data-end=\"1704\" data-start=\"1653\"\u003e(we always include \u003cstrong data-end=\"1702\" data-start=\"1673\"\u003etwo free RCA or GE 12AT7s\u003c\/strong\u003e)\u003c\/em\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-end=\"1730\" data-start=\"1707\"\u003e\n\u003cp data-end=\"1730\" data-start=\"1709\"\u003e\u003cstrong data-end=\"1728\" data-start=\"1709\"\u003e1 × 5AR4 \/ GZ34\u003c\/strong\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-end=\"1746\" data-start=\"1731\"\u003e\n\u003cp data-end=\"1746\" data-start=\"1733\"\u003e\u003cstrong data-end=\"1746\" data-start=\"1733\"\u003e2 × 6V6GT\u003c\/strong\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp data-end=\"1814\" data-start=\"1748\"\u003eAll tubes are tested, matched, and approved for Deluxe Reverb use.\u003c\/p\u003e\n\u003chr data-end=\"1819\" data-start=\"1816\"\u003e\n\u003ch3 data-end=\"1843\" data-start=\"1821\"\u003eLogos \u0026amp; Appearance\u003c\/h3\u003e\n\u003cp data-end=\"2073\" data-start=\"1845\"\u003eLogos on vintage GE and RCA tubes are often worn, faded, or partially missing, especially on ANOS examples. Branding may vary, but the \u003cstrong data-end=\"2050\" data-start=\"1980\"\u003etube type, construction, and manufacturer will always be GE or RCA\u003c\/strong\u003e, exactly as specified.\u003c\/p\u003e\n\u003cp data-end=\"2160\" data-start=\"2075\"\u003eIf you’re looking for a \u003cstrong data-end=\"2123\" data-start=\"2099\"\u003especific logo or era\u003c\/strong\u003e, please reach out before purchasing.\u003c\/p\u003e\n\u003chr data-end=\"2165\" data-start=\"2162\"\u003e\n\u003cp data-end=\"2300\" data-start=\"2167\"\u003eThese GE and RCA tube sets are for players who want a Deluxe Reverb that sounds correct—clear, responsive, and unmistakably American.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/article\u003e\n\u003c\/div\u003e\n\u003cdiv aria-hidden=\"true\" data-edge=\"true\" class=\"pointer-events-none h-px w-px absolute bottom-0\"\u003e\u003cbr\u003e\u003c\/div\u003e\n\u003ch2\u003e\u003cstrong\u003eNeed more help deciding what tubes are best for you?\u003c\/strong\u003e\u003c\/h2\u003e\n\u003cp\u003eUse our\u003cspan\u003e \u003c\/span\u003e\u003ca rel=\"noopener noreferrer\" href=\"https:\/\/fuzzaudio.com\/vacuum-tubes-plate-cheat-sheet-fuzz-audio\" target=\"_blank\"\u003eplate cheat sheet\u003c\/a\u003e\u003cspan\u003e \u003c\/span\u003eand\u003cspan\u003e \u003c\/span\u003e\u003ca rel=\"noopener noreferrer\" href=\"https:\/\/fuzzaudio.com\/category\/tube-buyers-guide\" target=\"_blank\"\u003evacuum tube buyers guide\u003c\/a\u003e\u003cspan\u003e \u003c\/span\u003eto determine which tubes are best for you. Likewise, you are welcome to reach out to us directly at\u003cspan\u003e \u003c\/span\u003e\u003ca rel=\"noopener noreferrer\" href=\"mailto:Support@FuzzAudio.com\" target=\"_blank\"\u003eSupport@FuzzAudio.com\u003c\/a\u003e\u003cspan\u003e \u003c\/span\u003eor by using our chat located on our shop page if you have further questions.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eNOS vs. ANOS vs. Test NOS\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eThese designations are strictly used to describe the cosmetic condition of our tubes. All tubes we sell test identically, come with 100% life and are guaranteed to work in your device!\u003c\/p\u003e\n\u003cp\u003eIf you are picky about owning an original box or wanting a specific logo please reach out to us\u003cspan\u003e \u003c\/span\u003e\u003cu\u003ebefore purchasing.\u003c\/u\u003e\u003c\/p\u003e\n\u003col\u003e\n\u003cli\u003e\n\u003cstrong\u003eNOS (New Old Stock) Tubes-\u003cspan\u003e \u003c\/span\u003e\u003c\/strong\u003eare 100% brand new vintage tubes in mint cosmetic condition with show zero signs of use. You should expect a legible logo and clean straight pins. An original box is likely but not guaranteed. \u003c\/li\u003e\n\u003c\/ol\u003e\n\u003col start=\"2\"\u003e\n\u003cli\u003e\n\u003cstrong\u003e\u003c\/strong\u003e\u003cstrong\u003eANOS Tubes-\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eotherwise known as “almost new old stock” tubes are basically new, but may show slight signs of use in cosmetic condition, such as a missing logo or slightly bent pins. An original box is possible but unlikely.\u003cstrong\u003e \u003c\/strong\u003e\n\u003c\/li\u003e\n\u003c\/ol\u003e\n\u003col start=\"3\"\u003e\n\u003cli\u003e\n\u003cstrong\u003eTest NOS Tubes-\u003cspan\u003e \u003c\/span\u003e\u003c\/strong\u003eare used but still operating to specification with 100% life. These tubes are equal in function to NOS valves, yet they cost considerably less because they have cosmetic blemishes. If you plan to disappear your tubes into the back of an amplifier or do not care what the tubes look like, then this is cost effective choice. Blemishes and cosmetic imperfections do not affect tone…\u003c\/li\u003e\n\u003c\/ol\u003e\n\u003cp\u003e\u003cstrong\u003eLogos:\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eVintage tubes were have a wide variety of logos printed on them. It is not uncommon to see a Mullard made tube with an RCA or GE logo, or a GE made tube with a Mullard logo. Your tube may come with a logo such are Heath Kit, Baldwin, Fisher, Hammond, Magnavox, Fender, Gibson, Silvertone, etc. but the true manufacturer of that tube will be correct to your order. If you are looking for a specific logo please reach out before purchase.\u003c\/p\u003e\n\u003ch3\u003e\n\u003cstrong\u003e\u003c\/strong\u003e\u003cstrong\u003eOur Standards:\u003c\/strong\u003e\n\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eAll tubes are tested for \u003cstrong\u003emicrophonics \u003c\/strong\u003eand are guaranteed to work in sensitive audio applications\u003c\/li\u003e\n\u003cli\u003eAll tubes sold are guaranteed to have strong (to spec) NOS test scores with 100% life\u003c\/li\u003e\n\u003cli\u003eAll tubes are tested on a calibrated Hickok 539C, Maxi-Matcher, E-Tracer or other industry standard tube analyzers\u003c\/li\u003e\n\u003cli\u003e\u003cstrong\u003eTubes are guaranteed for one year and can be returned within 30 days\u003c\/strong\u003e\u003c\/li\u003e\n\u003cli\u003ePreamp tubes matched by gain and mutual conductance (Gm)\u003c\/li\u003e\n\u003cli\u003ePower tubes matched by mA and Gm\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eDon’t forget to email\u003cspan\u003e \u003c\/span\u003e\u003ca href=\"mailto:Support@fuzzaudio.com\"\u003eSupport@fuzzaudio.com\u003c\/a\u003e\u003cspan\u003e \u003c\/span\u003eor reach out to us via chat if you need help picking out valves for your device.\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e","brand":"Fuzz Audio","offers":[{"title":"RCA 6V6GT \/ RCA 12AX7A Short Plate \/ Vintage Mullard","offer_id":39246769848355,"sku":"","price":540.0,"currency_code":"USD","in_stock":true},{"title":"RCA 6V6GT \/ RCA 12AX7A Short Plate \/ Matsushita (Japanese Mullard Clone)","offer_id":39246769881123,"sku":"","price":450.0,"currency_code":"USD","in_stock":true},{"title":"RCA 6V6GT \/ RCA 12AX7 Long Plate \/ Vintage Mullard","offer_id":39246769913891,"sku":"","price":540.0,"currency_code":"USD","in_stock":true},{"title":"RCA 6V6GT \/ RCA 12AX7 Long Plate \/ Matsushita (Japanese Mullard Clone)","offer_id":39246769946659,"sku":"","price":450.0,"currency_code":"USD","in_stock":true},{"title":"RCA 6V6GT \/ RCA 12AX7 Black Plate \/ Vintage Mullard","offer_id":39246769979427,"sku":"","price":650.0,"currency_code":"USD","in_stock":true},{"title":"RCA 6V6GT \/ RCA 12AX7 Black Plate \/ Matsushita (Japanese Mullard Clone)","offer_id":39246770012195,"sku":"","price":560.0,"currency_code":"USD","in_stock":true},{"title":"RCA 6V6GT \/ GE 12AX7 Long Plate \/ Vintage Mullard","offer_id":39246770044963,"sku":"","price":500.0,"currency_code":"USD","in_stock":true},{"title":"RCA 6V6GT \/ GE 12AX7 Long Plate \/ Matsushita (Japanese Mullard Clone)","offer_id":39246770077731,"sku":"","price":410.0,"currency_code":"USD","in_stock":true},{"title":"RCA 6V6GT \/ GE 12AX7A \/ Vintage Mullard","offer_id":39246770110499,"sku":"","price":500.0,"currency_code":"USD","in_stock":true},{"title":"RCA 6V6GT \/ GE 12AX7A \/ Matsushita (Japanese Mullard Clone)","offer_id":39246770143267,"sku":"","price":410.0,"currency_code":"USD","in_stock":true},{"title":"RCA 6V6GTA \/ RCA 12AX7A Short Plate \/ Vintage Mullard","offer_id":39246770307107,"sku":"","price":540.0,"currency_code":"USD","in_stock":true},{"title":"RCA 6V6GTA \/ RCA 12AX7A Short Plate \/ Matsushita (Japanese Mullard Clone)","offer_id":39246770339875,"sku":"","price":450.0,"currency_code":"USD","in_stock":true},{"title":"RCA 6V6GTA \/ RCA 12AX7 Long Plate \/ Vintage Mullard","offer_id":39246770372643,"sku":"","price":540.0,"currency_code":"USD","in_stock":true},{"title":"RCA 6V6GTA \/ RCA 12AX7 Long Plate \/ Matsushita (Japanese Mullard Clone)","offer_id":39246770405411,"sku":"","price":450.0,"currency_code":"USD","in_stock":true},{"title":"RCA 6V6GTA \/ RCA 12AX7 Black Plate \/ Vintage Mullard","offer_id":39246770438179,"sku":"","price":650.0,"currency_code":"USD","in_stock":true},{"title":"RCA 6V6GTA \/ RCA 12AX7 Black Plate \/ Matsushita (Japanese Mullard Clone)","offer_id":39246770470947,"sku":"","price":560.0,"currency_code":"USD","in_stock":true},{"title":"RCA 6V6GTA \/ GE 12AX7 Long Plate \/ Vintage Mullard","offer_id":39246770503715,"sku":"","price":500.0,"currency_code":"USD","in_stock":true},{"title":"RCA 6V6GTA \/ GE 12AX7 Long Plate \/ Matsushita (Japanese Mullard Clone)","offer_id":39246770536483,"sku":"","price":410.0,"currency_code":"USD","in_stock":true},{"title":"RCA 6V6GTA \/ GE 12AX7A \/ Vintage Mullard","offer_id":39246770569251,"sku":"","price":500.0,"currency_code":"USD","in_stock":true},{"title":"RCA 6V6GTA \/ GE 12AX7A \/ Matsushita (Japanese Mullard Clone)","offer_id":39246770602019,"sku":"","price":410.0,"currency_code":"USD","in_stock":true},{"title":"GE 6V6GT \/ RCA 12AX7A Short Plate \/ Vintage Mullard","offer_id":39246772142115,"sku":"","price":500.0,"currency_code":"USD","in_stock":true},{"title":"GE 6V6GT \/ RCA 12AX7A Short Plate \/ Matsushita (Japanese Mullard Clone)","offer_id":39246772174883,"sku":"","price":410.0,"currency_code":"USD","in_stock":true},{"title":"GE 6V6GT \/ RCA 12AX7 Long Plate \/ Vintage Mullard","offer_id":39246772207651,"sku":"","price":500.0,"currency_code":"USD","in_stock":true},{"title":"GE 6V6GT \/ RCA 12AX7 Long Plate \/ Matsushita (Japanese Mullard Clone)","offer_id":39246772240419,"sku":"","price":410.0,"currency_code":"USD","in_stock":true},{"title":"GE 6V6GT \/ RCA 12AX7 Black Plate \/ Vintage Mullard","offer_id":39246772273187,"sku":"","price":620.0,"currency_code":"USD","in_stock":true},{"title":"GE 6V6GT \/ RCA 12AX7 Black Plate \/ Matsushita (Japanese Mullard Clone)","offer_id":39246772305955,"sku":"","price":510.0,"currency_code":"USD","in_stock":true},{"title":"GE 6V6GT \/ GE 12AX7 Long Plate \/ Vintage Mullard","offer_id":39246772338723,"sku":"","price":460.0,"currency_code":"USD","in_stock":true},{"title":"GE 6V6GT \/ GE 12AX7 Long Plate \/ Matsushita (Japanese Mullard Clone)","offer_id":39246772371491,"sku":"","price":370.0,"currency_code":"USD","in_stock":true},{"title":"GE 6V6GT \/ GE 12AX7A \/ Vintage Mullard","offer_id":39246772404259,"sku":"","price":460.0,"currency_code":"USD","in_stock":true},{"title":"GE 6V6GT \/ GE 12AX7A \/ Matsushita (Japanese Mullard Clone)","offer_id":39246772437027,"sku":"","price":370.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0275\/0699\/9331\/products\/build-your-own-deluxe-reverb-tube-set-nos-tubes-fuzz-audio-263529.jpg?v=1718068944"},{"product_id":"princeton-reverb-nos-tube-set","title":"Princeton Reverb Tube Set","description":"\u003cmeta charset=\"UTF-8\"\u003e\n\u003cp\u003eIntroducing the \u003cstrong\u003ePrinceton Reverb Tube Set by Fuzz Audio\u003c\/strong\u003e - a customized set of tubes that allows you to fine-tune the sound of your Fender Princeton Reverb amplifier to your liking. Whether you're looking for the perfect break-up, clean tones or a blend of both, our collection of new old stock tubes has got you covered.\u003c\/p\u003e\n\u003cp\u003eOne of the key features of our Princeton Reverb Tube Set is the ability to customize the plate type to achieve different tones. For those looking for the best break-up, we recommend black plates, which deliver a warm, saturated sound that's perfect for blues and rock. On the other hand, for those seeking the best clean tones, short plates are the way to go. They produce a brighter and more articulate sound that's ideal for genres like jazz and country. And for those who want a combination of both, long plates are the perfect middle ground, delivering a balanced tone that's perfect for a variety of genres.\u003c\/p\u003e\n\u003cp\u003eThe Princeton Reverb Tube Set includes a total of 7 tubes, each with its own specific function. The set comes with 2 6V6GT power tubes, 3 12AX7 preamp tubes, and 1 5AR4 rectifier tube. In addition, we also include a free RCA 12AT7 tube to further fine-tune your amplifier's sound.\u003c\/p\u003e\n\u003cp\u003eAt Fuzz Audio, we pride ourselves on using only the highest quality tubes in our products, ensuring that you get the best possible sound out of your amplifier. So if you're looking to take your Fender Princeton Reverb to the next level, look no further than the Princeton Reverb Tube Set by Fuzz Audio.\u003c\/p\u003e","brand":"Fuzz Audio","offers":[{"title":"RCA 12AX7 Black Plate \/ RCA 6V6GT Smoked \/ Mullard 5AR4\/GZ34 (Vintage)","offer_id":40032592199715,"sku":"","price":600.0,"currency_code":"USD","in_stock":true},{"title":"RCA 12AX7 Black Plate \/ RCA 6V6GT Smoked \/ Matsushita 5AR4\/GZ34 (Mullard Clone)","offer_id":40032592232483,"sku":"","price":565.0,"currency_code":"USD","in_stock":true},{"title":"RCA 12AX7 Black Plate \/ RCA 6V6GT Smoked \/ RCA 5U4GB","offer_id":40032592265251,"sku":"","price":450.0,"currency_code":"USD","in_stock":true},{"title":"RCA 12AX7 Black Plate \/ RCA 6V6GT Smoked \/ Russian 5AR4","offer_id":40032592298019,"sku":"","price":450.0,"currency_code":"USD","in_stock":true},{"title":"RCA 12AX7 Black Plate \/ RCA 6V6GT Smoked \/ No 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12AX7 Long Grey Plate \/ RCA 6V6GTA \/ Russian 5AR4","offer_id":40032594427939,"sku":"","price":245.0,"currency_code":"USD","in_stock":true},{"title":"Sylvania 12AX7 Long Grey Plate \/ RCA 6V6GTA \/ No Rectifier","offer_id":40032594460707,"sku":"","price":230.0,"currency_code":"USD","in_stock":true},{"title":"Sylvania 12AX7 Long Grey Plate \/ Sylvania 6V6GT Smoked \/ Mullard 5AR4\/GZ34 (Vintage)","offer_id":40032594493475,"sku":"","price":380.0,"currency_code":"USD","in_stock":true},{"title":"Sylvania 12AX7 Long Grey Plate \/ Sylvania 6V6GT Smoked \/ Matsushita 5AR4\/GZ34 (Mullard Clone)","offer_id":40032594526243,"sku":"","price":330.0,"currency_code":"USD","in_stock":true},{"title":"Sylvania 12AX7 Long Grey Plate \/ Sylvania 6V6GT Smoked \/ RCA 5U4GB","offer_id":40032594559011,"sku":"","price":245.0,"currency_code":"USD","in_stock":true},{"title":"Sylvania 12AX7 Long Grey Plate \/ Sylvania 6V6GT Smoked \/ Russian 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12AX7 Short Grey Plate \/ RCA 6V6GT Smoked \/ No Rectifier","offer_id":40032594821155,"sku":"","price":250.0,"currency_code":"USD","in_stock":true},{"title":"Matsushita 12AX7 Short Grey Plate \/ RCA 6V6GTA \/ Mullard 5AR4\/GZ34 (Vintage)","offer_id":40032594853923,"sku":"","price":380.0,"currency_code":"USD","in_stock":true},{"title":"Matsushita 12AX7 Short Grey Plate \/ RCA 6V6GTA \/ Matsushita 5AR4\/GZ34 (Mullard Clone)","offer_id":40032594886691,"sku":"","price":330.0,"currency_code":"USD","in_stock":true},{"title":"Matsushita 12AX7 Short Grey Plate \/ RCA 6V6GTA \/ RCA 5U4GB","offer_id":40032594919459,"sku":"","price":245.0,"currency_code":"USD","in_stock":true},{"title":"Matsushita 12AX7 Short Grey Plate \/ RCA 6V6GTA \/ Russian 5AR4","offer_id":40032594952227,"sku":"","price":245.0,"currency_code":"USD","in_stock":true},{"title":"Matsushita 12AX7 Short Grey Plate \/ RCA 6V6GTA \/ No Rectifier","offer_id":40032594984995,"sku":"","price":230.0,"currency_code":"USD","in_stock":true},{"title":"Matsushita 12AX7 Short Grey Plate \/ Sylvania 6V6GT Smoked \/ Mullard 5AR4\/GZ34 (Vintage)","offer_id":40032595017763,"sku":"","price":380.0,"currency_code":"USD","in_stock":true},{"title":"Matsushita 12AX7 Short Grey Plate \/ Sylvania 6V6GT Smoked \/ Matsushita 5AR4\/GZ34 (Mullard Clone)","offer_id":40032595050531,"sku":"","price":330.0,"currency_code":"USD","in_stock":true},{"title":"Matsushita 12AX7 Short Grey Plate \/ Sylvania 6V6GT Smoked \/ RCA 5U4GB","offer_id":40032595083299,"sku":"","price":245.0,"currency_code":"USD","in_stock":true},{"title":"Matsushita 12AX7 Short Grey Plate \/ Sylvania 6V6GT Smoked \/ Russian 5AR4","offer_id":40032595116067,"sku":"","price":245.0,"currency_code":"USD","in_stock":true},{"title":"Matsushita 12AX7 Short Grey Plate \/ Sylvania 6V6GT Smoked \/ No Rectifier","offer_id":40032595148835,"sku":"","price":230.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0275\/0699\/9331\/products\/princeton-reverb-tube-set-nos-tubes-fuzz-audio-696295.jpg?v=1715477755"},{"product_id":"twin-reverb-retube-set","title":"Twin Reverb Retube Set","description":"\u003cmeta charset=\"UTF-8\"\u003e\n\u003cp data-mce-fragment=\"1\"\u003eCustomize your Twin Reverb (or clone) the way you want it with our collection of new old stock USA tubes!\u003c\/p\u003e\n\u003cp data-mce-fragment=\"1\"\u003e\u003cstrong\u003eRCA 12AX7A are typically the go to 12AX7 option for Twin Reverbs.\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp data-mce-fragment=\"1\"\u003eFor \u003cstrong data-mce-fragment=\"1\"\u003ebest cleans\u003c\/strong\u003e use short plates. \u003c\/p\u003e\n\u003cp data-mce-fragment=\"1\"\u003eFor\u003cstrong data-mce-fragment=\"1\"\u003e best of both worlds\u003c\/strong\u003e use long plates.\u003c\/p\u003e\n\u003cp data-mce-fragment=\"1\"\u003e\u003cstrong data-mce-fragment=\"1\"\u003eAll sets include:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp data-mce-fragment=\"1\"\u003e2 - \u003cspan style=\"text-decoration: underline;\" data-mce-fragment=\"1\" data-mce-style=\"text-decoration: underline;\"\u003eFree RCA 12AT7\u003c\/span\u003e\u003c\/p\u003e\n\u003cp data-mce-fragment=\"1\"\u003e4 - 6L6GC\u003c\/p\u003e\n\u003cp data-mce-fragment=\"1\"\u003e4 - 12AX7\u003c\/p\u003e\n\u003cp data-mce-fragment=\"1\"\u003e \u003c\/p\u003e\n\u003cp data-mce-fragment=\"1\"\u003e---\u003c\/p\u003e\n\u003cp\u003eStock tube sets for vintage Fender amps and their clones. \u003c\/p\u003e\n\u003cp\u003eAll sets come with one RCA: 12AX7, 6V6, and 5Y3GT\u003c\/p\u003e\n\u003cp\u003eCustomizable options available:\u003c\/p\u003e\n\u003cp\u003e\u003cbr\u003e\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e---\u003c\/p\u003e\n\u003ch1\u003eWhat are the best tubes for Fender Amps? \u003c\/h1\u003e\n\u003cp\u003eThey have been behind countless classic tracks and dominated the market with their versatile range of electric guitar tones. From smooth jazz to hard rock, Fender amplifiers are always a sure bet for awesome guitar tone.\u003c\/p\u003e\n\u003cp\u003eYet wait, you know all this. You are reading this because you are already in love your Fender amp, you take it everywhere and you want it to perform to its absolute best.\u003c\/p\u003e\n\u003cp\u003eHere is Fuzz Audio’s list (by era) of vintage valves that will help you get that extra 10% of warm tube goodness of out your Fender tone machine.\u003c\/p\u003e\n\u003ch2\u003eRCA is King, GE is Queen\u003c\/h2\u003e\n\u003cp\u003eWhen it comes to vintage Fender amps and really any classic USA guitar circuit, RCA is always the first brand that should come to mind. This is because for any given Fender amp made prior to 1965 there is an 80+% chance your amp originally came stock with RCA tubes.\u003c\/p\u003e\n\u003cp\u003eBecause Fender relied heavily on the use of RCA tubes up until about 1965, they should always be considered when upgrading tubes in a Fender amp or restoring an amp back to original condition.\u003c\/p\u003e\n\u003cp\u003eHowever, that being said, other USA manufactures should not be overlooked.\u003c\/p\u003e\n\u003cp\u003eRemember how we said, “80+% chance your amp originally came stock with RCA tubes?” Well, the other 15-20% would be found with GE tubes.\u003cspan\u003e \u003c\/span\u003e\u003ca href=\"https:\/\/fuzzaudio.shop\/products\/ge-12ax7\"\u003eGE 12AX7\u003c\/a\u003es in particular are a great budget valve to get your amp running optimally without burning a hole in your wallet.\u003c\/p\u003e\n\u003ch2\u003eThe Best Tubes for Fender Amps by Era\u003c\/h2\u003e\n\u003ch3\u003eTweed Era (1948-1960) \u003c\/h3\u003e\n\u003cp\u003eSingle speaker tweed amps deserve long plate preamp tubes. If you play with lots of distortion, fuzz or like lots of warmth; black plates are by far the best tubes for tweed Fender amps.\u003c\/p\u003e\n\u003cp\u003eStock tubes for early tweed Fender amps:\u003c\/p\u003e\n\u003cp\u003e\u003ca href=\"https:\/\/fuzzaudio.shop\/products\/rca-black-plate-12ax7?_pos=1\u0026amp;_sid=111ea4976\u0026amp;_ss=r\" target=\"_blank\"\u003eRCA Black Plate\u003c\/a\u003e\u003cspan\u003e \u003c\/span\u003ePre Amp Tubes\u003cbr\u003e\u003ca href=\"https:\/\/fuzzaudio.shop\/products\/rca-6v6gt?_pos=1\u0026amp;_sid=ed8b5a474\u0026amp;_ss=r\" target=\"_blank\"\u003eRCA 6V6GT\u003c\/a\u003e\u003cspan\u003e \u003c\/span\u003e(Smoked)\u003cbr\u003eRCA 5Y3GT\u003c\/p\u003e\n\u003cp\u003eOur optimal Tweed Champ set:\u003c\/p\u003e\n\u003cp\u003e\u003ca href=\"https:\/\/fuzzaudio.shop\/products\/rca-12ax7?_pos=1\u0026amp;_sid=4079dda40\u0026amp;_ss=r\" target=\"_blank\"\u003eBlack Plate 12AX7\u003c\/a\u003e\u003cbr\u003eRCA 6V6GT (smoked)\u003cbr\u003eRCA or Tung-Sol 5Y3GT\u003c\/p\u003e\n\u003ch3\u003eBack and Brownface Era (1960-1967) \u003c\/h3\u003e\n\u003cp\u003eAs amps started to get bigger, tube plates became smaller to compensate for “noise floor” with the larger Fender amps of the 60’s.\u003c\/p\u003e\n\u003cp\u003eIf you have a blackface amp with one speaker, long plate preamp tubes are still the way to go.\u003c\/p\u003e\n\u003cp\u003eOn the other hand, if your amp has more than one speaker, and you want your amplifier to be quiet, you may want to look at tubes like the 12AX7A or 7025. Both RCA and GE have great versions of these tubes. For power tubes, hands down best performers are RCA black plates.\u003c\/p\u003e\n\u003cp\u003eStock tubes for Blackface Fender amps:\u003c\/p\u003e\n\u003cp\u003e\u003ca href=\"https:\/\/fuzzaudio.shop\/products\/rca-12ax7?_pos=8\u0026amp;_sid=ec26202b9\u0026amp;_ss=r\"\u003eRCA\/GE 12AX7A\/7025\u003c\/a\u003e\u003cspan\u003e \u003c\/span\u003e(Grey Short Plates)\u003cbr\u003eRCA\/GE 12AT7 (Grey Plate)\u003cbr\u003eRCA Black Plate 6L6GC\u003cbr\u003e\u003ca href=\"https:\/\/fuzzaudio.shop\/products\/rca-6v6gt?_pos=2\u0026amp;_sid=ec26202b9\u0026amp;_ss=r\"\u003eRCA 6V6GTA\u003c\/a\u003e\u003cspan\u003e \u003c\/span\u003e(Grey Plate)\u003c\/p\u003e\n\u003cp\u003eOur optimal Blackface Twin Reverb set:\u003c\/p\u003e\n\u003cp\u003e4 RCA 7025\u003cbr\u003e\u003ca href=\"https:\/\/fuzzaudio.shop\/products\/rca-12at7-ecc81?variant=32364410667043\"\u003e2 RCA 12AT7\u003c\/a\u003e\u003cspan\u003e \u003c\/span\u003eBlack Plate\u003cbr\u003e4 RCA Black Plate 6L6GC\u003c\/p\u003e\n\u003ch3\u003eSilverface to Modern Era (1967 - Present) \u003c\/h3\u003e\n\u003cp\u003eEarly Silverface amps would have been found with the last batches of the classic RCA tubes of the Blackface Era. Yet by 1970 the glory days of RCA were over, and we see Fender start to plug in Sylvania\/Philips Preamp tubes, along with GE pre and power tubes. These tubes are typically branded “Fender” and sound less warm than earlier versions.\u003c\/p\u003e\n\u003cp\u003eThus, in our opinion the best vacuum tubes for Fender amps were made pre 1970, and because of this, we are left with the options already mentioned if you are chasing legendary tone.\u003c\/p\u003e\n\u003cp\u003eIf you are trying to return your Silverface amp back to 100% stock components you would have several options, as Fender was inconsistent with the tubes they used in this era.\u003c\/p\u003e\n\u003cp\u003eStock tubes for early Silverface (1967-70):\u003c\/p\u003e\n\u003cp\u003eRCA\/GE 12AX7A or 7025\u003cbr\u003eRCA\/GE 6L6GC\u003cbr\u003eRCA\/GE 6V6GTA\u003c\/p\u003e\n\u003cp\u003eStock tubes for post 1970 Silverface:\u003c\/p\u003e\n\u003cp\u003eSylvania\/Philips (USA) Preamp Tubes (Sometimes Fender Branded)\u003cbr\u003eGE 12AX7A (Fender Branded)\u003cbr\u003ePower tubes: USA or even JAPANESE\u003c\/p\u003e\n\u003cp data-mce-fragment=\"1\"\u003e \u003c\/p\u003e\n\u003cp data-mce-fragment=\"1\"\u003e \u003c\/p\u003e\n\u003cp data-mce-fragment=\"1\"\u003e \u003c\/p\u003e\n\u003cp data-mce-fragment=\"1\"\u003e \u003c\/p\u003e","brand":"Fuzz Audio","offers":[{"title":"NOS RCA Black Plates \/ RCA 12AX7A (Short)","offer_id":39251029393443,"sku":"","price":900.0,"currency_code":"USD","in_stock":true},{"title":"NOS RCA Black Plates \/ RCA 12AX7 (Long)","offer_id":39251029426211,"sku":"","price":900.0,"currency_code":"USD","in_stock":true},{"title":"NOS RCA Black Plates \/ Raytheon (Short)","offer_id":39251029458979,"sku":"","price":850.0,"currency_code":"USD","in_stock":true},{"title":"NOS RCA Black Plates \/ GE 12AX7A (Short)","offer_id":39251029491747,"sku":"","price":850.0,"currency_code":"USD","in_stock":true},{"title":"NOS RCA Black Plates \/ GE 12AX7 (Long)","offer_id":39251029524515,"sku":"","price":850.0,"currency_code":"USD","in_stock":true},{"title":"Test NOS RCA Black Plates \/ RCA 12AX7A (Short)","offer_id":39251029557283,"sku":"","price":750.0,"currency_code":"USD","in_stock":true},{"title":"Test NOS RCA Black Plates \/ RCA 12AX7 (Long)","offer_id":39251029590051,"sku":"","price":750.0,"currency_code":"USD","in_stock":true},{"title":"Test NOS RCA Black Plates \/ Raytheon (Short)","offer_id":39251029622819,"sku":"","price":700.0,"currency_code":"USD","in_stock":true},{"title":"Test NOS RCA Black Plates \/ GE 12AX7A (Short)","offer_id":39251029655587,"sku":"","price":700.0,"currency_code":"USD","in_stock":true},{"title":"Test NOS RCA Black Plates \/ GE 12AX7 (Long)","offer_id":39251029688355,"sku":"","price":700.0,"currency_code":"USD","in_stock":true},{"title":"GE \/ RCA 12AX7A (Short)","offer_id":39251029721123,"sku":"","price":600.0,"currency_code":"USD","in_stock":false},{"title":"GE \/ RCA 12AX7 (Long)","offer_id":39251029753891,"sku":"","price":600.0,"currency_code":"USD","in_stock":true},{"title":"GE \/ Raytheon (Short)","offer_id":39251029786659,"sku":"","price":550.0,"currency_code":"USD","in_stock":true},{"title":"GE \/ GE 12AX7A (Short)","offer_id":39251029819427,"sku":"","price":450.0,"currency_code":"USD","in_stock":true},{"title":"GE \/ GE 12AX7 (Long)","offer_id":39251029852195,"sku":"","price":450.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0275\/0699\/9331\/products\/twin-reverb-retube-set-nos-tubes-fuzz-audio-765266.jpg?v=1715464198"},{"product_id":"sylvania-5y3gt","title":"Sylvania 5Y3GT","description":"Fantastic option for any 5Y3GT need. Long lasting, rugged, and beautifully made.","brand":"Fuzz Audio","offers":[{"title":"Test NOS","offer_id":39544910151715,"sku":"","price":20.0,"currency_code":"USD","in_stock":true},{"title":"NOS","offer_id":39544910184483,"sku":"","price":30.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0275\/0699\/9331\/products\/sylvania-5y3gt-nos-tubes-fuzz-audio-416104.jpg?v=1616187125"},{"product_id":"ge-black-plate-12ax7","title":"GE 12AX7 Black Plate","description":"\u003cp\u003eThe GE black plate 12AX7 is legendary with warm and robust breakup tone. This is an extremely rare tube that sound amazing in 50's tweed amps or clones. \u003c\/p\u003e","brand":"Fuzz Audio","offers":[{"title":"ANOS Black Plate","offer_id":39572710162467,"sku":"","price":125.0,"currency_code":"USD","in_stock":true},{"title":"ANOS Galvanized Black Plate","offer_id":39572710195235,"sku":"","price":125.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0275\/0699\/9331\/files\/GE_12AX7_NOS_Black_Plates_Fuzz_Audio_Guitar_and_Hifi_Tubes.jpg?v=1751394737"},{"product_id":"raytheon-12ax7","title":"Raytheon 12AX7","description":"\u003cp\u003eAnother rare 12AX7 that is getting harder and harder to find, Raytheon 12AX7s are catching on as an option to rival legendary tubes like Mullard and RCA. Their sound is full, sweat, and natural. They are regarded for their long life span and sturdy low noise build. \u003c\/p\u003e\n\u003ch2\u003e\u003cstrong\u003eHere are a few things to remember:\u003c\/strong\u003e\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003eShorter plates are less noisy (on average)\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cul\u003e\n\u003cli\u003eLonger plates are tonally more complex i.e. more \"depth\/fullness\" (on average)\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eReach out to a Fuzz expert\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eif you would like more help determining what tubes are best for you! We can be reached at Support@FuzzAudio.com or by clicking the chat icon in the lower right hand corner of your screen. \u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003e\u003cstrong\u003eNeed help deciding what tubes are best for you?\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cp\u003eUse our\u003cspan\u003e \u003c\/span\u003e\u003ca href=\"https:\/\/fuzzaudio.com\/vacuum-tubes-plate-cheat-sheet-fuzz-audio\" target=\"_blank\"\u003eplate cheat sheet\u003c\/a\u003e\u003cspan\u003e \u003c\/span\u003eand\u003cspan\u003e \u003c\/span\u003e\u003ca href=\"https:\/\/fuzzaudio.com\/category\/tube-buyers-guide\" target=\"_blank\"\u003evacuum tube buyers guide\u003c\/a\u003e\u003cspan\u003e \u003c\/span\u003eto determine which tubes are best for you. Likewise, you are welcome to reach out to us directly at\u003cspan\u003e \u003c\/span\u003e\u003ca href=\"mailto:Support@FuzzAudio.com\" target=\"_blank\"\u003eSupport@FuzzAudio.com\u003c\/a\u003e\u003cspan\u003e \u003c\/span\u003eor by using our chat located on our shop page if you have further questions.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eNOS vs. ANOS vs. Test NOS\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eThese designations are strictly used to describe the cosmetic condition of our tubes. All tubes we sell test identically, come with 100% life and are guaranteed to work in your device!\u003c\/p\u003e\n\u003cp\u003eIf you are picky about owning an original box or wanting a specific logo please reach out to us\u003cspan\u003e \u003c\/span\u003e\u003cu\u003ebefore purchasing.\u003c\/u\u003e\u003c\/p\u003e\n\u003col\u003e\n\u003cli\u003e\n\u003cstrong\u003eNOS (New Old Stock) Tubes-\u003cspan\u003e \u003c\/span\u003e\u003c\/strong\u003eare 100% brand new vintage tubes in mint cosmetic condition with show zero signs of use. You should expect a legible logo and clean straight pins. An original box is likely but not guaranteed. \u003c\/li\u003e\n\u003c\/ol\u003e\n\u003col start=\"2\"\u003e\n\u003cli\u003e\n\u003cstrong\u003e\u003c\/strong\u003e\u003cstrong\u003eANOS Tubes-\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eotherwise known as “almost new old stock” tubes are basically new, but may show slight signs of use in cosmetic condition, such as a missing logo or slightly bent pins. An original box is possible but unlikely.\u003cstrong\u003e \u003c\/strong\u003e\n\u003c\/li\u003e\n\u003c\/ol\u003e\n\u003col start=\"3\"\u003e\n\u003cli\u003e\n\u003cstrong\u003eTest NOS Tubes-\u003cspan\u003e \u003c\/span\u003e\u003c\/strong\u003eare used but still operating to specification with 100% life. These tubes are equal in function to NOS valves, yet they cost considerably less because they have cosmetic blemishes. If you plan to disappear your tubes into the back of an amplifier or do not care what the tubes look like, then this is cost effective choice. Blemishes and cosmetic imperfections do not affect tone…\u003c\/li\u003e\n\u003c\/ol\u003e\n\u003cp\u003e\u003cstrong\u003eLogos:\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eVintage tubes have a wide variety of logos printed on them. It is not uncommon to see a Mullard made tube with an RCA or GE logo, or a GE made tube with a Mullard logo. Your tube may come with a logo such are Heath Kit, Baldwin, Fisher, Hammond, Magnavox, Fender, Gibson, Silvertone, etc. but the true manufacturer of that tube will be correct to your order. If you are looking for a specific logo please reach out before purchase.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003e\u003c\/strong\u003e\u003cstrong\u003eOur Standards:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eAll tubes are tested for \u003cstrong\u003emicrophonics \u003c\/strong\u003eand are guaranteed to work in sensitive audio applications\u003c\/li\u003e\n\u003cli\u003eAll tubes sold are guaranteed to have strong (to spec) NOS test scores with 100% life\u003c\/li\u003e\n\u003cli\u003eAll tubes are tested on a calibrated Hickok 539C, Maxi-Matcher, E-Tracer or other industry standard tube analyzers\u003c\/li\u003e\n\u003cli\u003e\u003cstrong\u003eTubes are guaranteed for one year and can be returned within 30 days\u003c\/strong\u003e\u003c\/li\u003e\n\u003cli\u003ePreamp tubes matched by gain and mutual conductance (Gm)\u003c\/li\u003e\n\u003cli\u003ePower tubes matched by mA and Gm\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eDon’t forget to email\u003cspan\u003e \u003c\/span\u003e\u003ca href=\"mailto:Support@fuzzaudio.com\" target=\"_blank\"\u003eSupport@fuzzaudio.com\u003c\/a\u003e\u003cspan\u003e \u003c\/span\u003eor reach out to us via chat if you need help picking out valves for your device.\u003c\/p\u003e","brand":"Fuzz Audio","offers":[{"title":"Raytheon Black Plate \/ NOS","offer_id":39755170971683,"sku":"","price":130.0,"currency_code":"USD","in_stock":false},{"title":"Raytheon Black Plate \/ Tests NOS","offer_id":39755171233827,"sku":"","price":80.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0275\/0699\/9331\/products\/raytheon-black-plate-12ax7-nos-tubes-fuzz-audio-244075.jpg?v=1715477053"},{"product_id":"raytheon-12au7-black-plate","title":"Raytheon 12AU7 Black Plate","description":"\u003cp\u003eManufactured in the 1950's. These legendary tubes are super warm, deep, booming, and have great low end. \u003c\/p\u003e\n\u003ch3\u003e\u003cstrong\u003eNeed help deciding what tubes are best for you?\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cp\u003eUse our\u003cspan\u003e \u003c\/span\u003e\u003ca href=\"https:\/\/fuzzaudio.com\/vacuum-tubes-plate-cheat-sheet-fuzz-audio\" target=\"_blank\"\u003eplate cheat sheet\u003c\/a\u003e\u003cspan\u003e \u003c\/span\u003eand\u003cspan\u003e \u003c\/span\u003e\u003ca href=\"https:\/\/fuzzaudio.com\/category\/tube-buyers-guide\" target=\"_blank\"\u003evacuum tube buyers guide\u003c\/a\u003e\u003cspan\u003e \u003c\/span\u003eto determine which tubes are best for you. Likewise, you are welcome to reach out to us directly at\u003cspan\u003e \u003c\/span\u003e\u003ca href=\"mailto:Support@FuzzAudio.com\" target=\"_blank\"\u003eSupport@FuzzAudio.com\u003c\/a\u003e\u003cspan\u003e \u003c\/span\u003eor by using our chat located on our shop page if you have further questions.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eNOS vs. ANOS vs. Test NOS\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eThese designations are strictly used to describe the cosmetic condition of our tubes. All tubes we sell test identically, come with 100% life and are guaranteed to work in your device!\u003c\/p\u003e\n\u003cp\u003eIf you are picky about owning an original box or wanting a specific logo please reach out to us\u003cspan\u003e \u003c\/span\u003e\u003cu\u003ebefore purchasing.\u003c\/u\u003e\u003c\/p\u003e\n\u003col\u003e\n\u003cli\u003e\n\u003cstrong\u003eNOS (New Old Stock) Tubes-\u003cspan\u003e \u003c\/span\u003e\u003c\/strong\u003eare 100% brand new vintage tubes in mint cosmetic condition with show zero signs of use. You should expect a legible logo and clean straight pins. An original box is likely but not guaranteed. \u003c\/li\u003e\n\u003c\/ol\u003e\n\u003col start=\"2\"\u003e\n\u003cli\u003e\n\u003cstrong\u003e\u003c\/strong\u003e\u003cstrong\u003eANOS Tubes-\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eotherwise known as “almost new old stock” tubes are basically new, but may show slight signs of use in cosmetic condition, such as a missing logo or slightly bent pins. An original box is possible but unlikely.\u003cstrong\u003e \u003c\/strong\u003e\n\u003c\/li\u003e\n\u003c\/ol\u003e\n\u003col start=\"3\"\u003e\n\u003cli\u003e\n\u003cstrong\u003eTest NOS Tubes-\u003cspan\u003e \u003c\/span\u003e\u003c\/strong\u003eare used but still operating to specification with 100% life. These tubes are equal in function to NOS valves, yet they cost considerably less because they have cosmetic blemishes. If you plan to disappear your tubes into the back of an amplifier or do not care what the tubes look like, then this is cost effective choice. Blemishes and cosmetic imperfections do not affect tone…\u003c\/li\u003e\n\u003c\/ol\u003e\n\u003cp\u003e\u003cstrong\u003eLogos:\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eVintage tubes have a wide variety of logos printed on them. It is not uncommon to see a Mullard made tube with an RCA or GE logo, or a GE made tube with a Mullard logo. Your tube may come with a logo such are Heath Kit, Baldwin, Fisher, Hammond, Magnavox, Fender, Gibson, Silvertone, etc. but the true manufacturer of that tube will be correct to your order. If you are looking for a specific logo please reach out before purchase.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003e\u003c\/strong\u003e\u003cstrong\u003eOur Standards:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eAll tubes are tested for \u003cstrong\u003emicrophonics \u003c\/strong\u003eand are guaranteed to work in sensitive audio applications\u003c\/li\u003e\n\u003cli\u003eAll tubes sold are guaranteed to have strong (to spec) NOS test scores with 100% life\u003c\/li\u003e\n\u003cli\u003eAll tubes are tested on a calibrated Hickok 539C, Maxi-Matcher, E-Tracer or other industry standard tube analyzers\u003c\/li\u003e\n\u003cli\u003e\u003cstrong\u003eTubes are guaranteed for one year and can be returned within 30 days\u003c\/strong\u003e\u003c\/li\u003e\n\u003cli\u003ePreamp tubes matched by gain and mutual conductance (Gm)\u003c\/li\u003e\n\u003cli\u003ePower tubes matched by mA and Gm\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eDon’t forget to email\u003cspan\u003e \u003c\/span\u003e\u003ca href=\"mailto:Support@fuzzaudio.com\" target=\"_blank\"\u003eSupport@fuzzaudio.com\u003c\/a\u003e\u003cspan\u003e \u003c\/span\u003eor reach out to us via chat if you need help picking out valves for your device.\u003c\/p\u003e","brand":"Fuzz Audio","offers":[{"title":"NOS","offer_id":39292784246819,"sku":"RAYX7BPN","price":60.0,"currency_code":"USD","in_stock":false},{"title":"TEST NOS","offer_id":39292784279587,"sku":"RAYX7BPT","price":50.0,"currency_code":"USD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0275\/0699\/9331\/products\/raytheon-12au7-black-plate-nos-tubes-fuzz-audio-232267.jpg?v=1715477060"},{"product_id":"tung-sol-5y3gt","title":"Tung-Sol 5Y3GT","description":"\u003cp\u003eClassic tube suitable for all uses. Tung-Sol 5Y3GT are known for their longevity and ruggedness. In our option they can go toe to toe with RCA all day long. \u003c\/p\u003e\n\u003cp\u003eGreat in Fender Champs!\u003c\/p\u003e","brand":"Fuzz Audio","offers":[{"title":"NOS","offer_id":39296820641827,"sku":"","price":40.0,"currency_code":"USD","in_stock":true},{"title":"Tests NOS","offer_id":39296820674595,"sku":"","price":25.0,"currency_code":"USD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0275\/0699\/9331\/products\/tung-sol-5y3gt-nos-tubes-fuzz-audio-270976.jpg?v=1715463491"},{"product_id":"ge-6l6gc","title":"GE 6L6GC Matched","description":"\u003cp\u003e\u003cstrong\u003eGE 6L6GC NOS Matched Pair \u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eExperience unparalleled tonal performance with a matched pair of GE 6L6GC power vacuum tubes from Fuzz Audio. Renowned for their exceptional durability and vibrant tonal quality, these vintage tubes deliver a warm, tight, and punchy sound that surpasses any modern equivalent. Perfect for musicians seeking robust and reliable tubes, the GE 6L6GC offers a sonic upgrade without breaking the bank.\u003c\/p\u003e\n\u003cp\u003eOur GE 6L6GC tubes are meticulously tested to ensure the highest standards of quality and performance. At Fuzz Audio, we understand the importance of reliability, which is why each pair undergoes stringent testing procedures to guarantee optimal matching and performance consistency. With our comprehensive Tube Buyers Guide, you can make informed decisions and find the perfect tubes to match your audio needs.\u003c\/p\u003e\n\u003cp\u003eWe stand by the quality of our products, offering a one-year warranty on all our tubes. This commitment to excellence ensures that you can enjoy the rich, dynamic sound of the GE 6L6GC tubes with complete peace of mind. Upgrade your amplifier today and experience the superior sound quality and longevity that only vintage tubes can provide.\u003c\/p\u003e\n\u003cp\u003eExplore the world of premium vintage audio with the GE 6L6GC Matched Pair from Fuzz Audio—where quality and performance meet affordability.\u003c\/p\u003e\n\u003cp\u003e**Please note logo condition will vary\u003c\/p\u003e\n\u003cp\u003e\u003cbr\u003e\u003c\/p\u003e","brand":"Fuzz Audio","offers":[{"title":"Matched Pair","offer_id":40485084037155,"sku":"","price":250.0,"currency_code":"USD","in_stock":true},{"title":"Matched Quad","offer_id":40485084069923,"sku":"","price":500.0,"currency_code":"USD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0275\/0699\/9331\/files\/48E6E098-2BC2-4E0F-BDDA-0F2041AA049F.jpg?v=1726321822"},{"product_id":"rca-black-plate-12ax7","title":"RCA 12AX7 Black Plate","description":"\u003ch1\u003eRCA 12AX7 Black Plate (1950s)\u003c\/h1\u003e\n\u003ch3 data-end=\"328\" data-start=\"277\"\u003eIt’s true… \u003cstrong data-end=\"328\" data-start=\"288\"\u003eNOS tubes really do sound better.\u003c\/strong\u003e\n\u003c\/h3\u003e\n\u003cp data-end=\"449\" data-start=\"330\"\u003eA great place to hear it is the \u003cstrong data-end=\"387\" data-start=\"362\"\u003eRCA 12AX7 Black Plate\u003c\/strong\u003e — one of the earliest and most sought-after 12AX7s ever made.\u003c\/p\u003e\n\u003cp data-end=\"626\" data-start=\"451\"\u003eManufactured in the \u003cstrong data-end=\"480\" data-start=\"471\"\u003e1950s\u003c\/strong\u003e, these were the first RCA 12AX7 variants and quickly became a staple in American guitar amps and studio equipment during the golden age of tubes.\u003c\/p\u003e\n\u003cp data-end=\"730\" data-start=\"628\"\u003eThey are especially loved in \u003cstrong data-end=\"687\" data-start=\"657\"\u003esmall, single-speaker amps\u003c\/strong\u003e, where their character really comes alive.\u003c\/p\u003e\n\u003ch3 data-end=\"740\" data-start=\"732\" data-section-id=\"ynr3jq\"\u003eTone\u003c\/h3\u003e\n\u003cp data-end=\"986\" data-start=\"742\"\u003eThe RCA Black Plate is known for a \u003cstrong data-end=\"816\" data-start=\"777\"\u003ebig, warm low end and early breakup\u003c\/strong\u003e. Compared to later grey-plate versions, these have \u003cstrong data-end=\"911\" data-start=\"868\"\u003eless headroom and more harmonic texture\u003c\/strong\u003e, making them ideal for players who want their amp to start working sooner.\u003c\/p\u003e\n\u003cp data-end=\"995\" data-start=\"988\"\u003eExpect:\u003c\/p\u003e\n\u003cp data-end=\"1107\" data-start=\"997\"\u003e• Thick low end\u003cbr data-end=\"1015\" data-start=\"1012\"\u003e• Warm mids\u003cbr data-end=\"1029\" data-start=\"1026\"\u003e• Smooth but present highs\u003cbr data-end=\"1058\" data-start=\"1055\"\u003e• Earlier breakup than later RCA 12AX7 versions\u003c\/p\u003e\n\u003cp data-end=\"1207\" data-start=\"1109\"\u003eThe result is a \u003cstrong data-end=\"1152\" data-start=\"1125\"\u003erich, vintage overdrive\u003c\/strong\u003e that helped define many classic American guitar tones.\u003c\/p\u003e\n\u003ch3 data-end=\"1229\" data-start=\"1209\" data-section-id=\"1ci21yq\"\u003eWhere They Shine\u003c\/h3\u003e\n\u003cp data-end=\"1336\" data-start=\"1231\"\u003eBlack plates are particularly great in smaller amps where their warmth and saturation fill out the sound.\u003c\/p\u003e\n\u003cp data-end=\"1398\" data-start=\"1338\"\u003eClassic gear that originally used RCA black plates includes:\u003c\/p\u003e\n\u003cp data-end=\"1443\" data-start=\"1400\"\u003e• \u003cstrong data-end=\"1418\" data-start=\"1402\"\u003eFender Champ\u003c\/strong\u003e\u003cbr data-end=\"1421\" data-start=\"1418\"\u003e• \u003cstrong data-end=\"1443\" data-start=\"1423\"\u003eTeletronix LA-2A\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp data-end=\"1588\" data-start=\"1445\"\u003eThey’re also an excellent choice for \u003cstrong data-end=\"1521\" data-start=\"1482\"\u003erestoring 1950s American amplifiers\u003c\/strong\u003e or adding authentic vintage character to modern builds and clones.\u003c\/p\u003e\n\u003cdiv class=\"flex max-w-full flex-col gap-4 grow\"\u003e\n\u003cdiv class=\"min-h-8 text-message relative flex w-full flex-col items-end gap-2 text-start break-words whitespace-normal [.text-message+\u0026amp;]:mt-1\" data-message-model-slug=\"gpt-5-3\" dir=\"auto\" data-message-id=\"75ea9ba2-8147-4839-abf9-33e5e2de98da\" data-message-author-role=\"assistant\"\u003e\n\u003cdiv class=\"flex w-full flex-col gap-1 empty:hidden\"\u003e\n\u003cdiv class=\"markdown prose dark:prose-invert w-full wrap-break-word dark markdown-new-styling\"\u003e\n\u003ch3 data-end=\"131\" data-start=\"102\" data-section-id=\"1mywawa\"\u003eRCA Black Plates in Hi-Fi\u003c\/h3\u003e\n\u003cp data-end=\"259\" data-start=\"133\"\u003eThe RCA 12AX7 Black Plate wasn’t just a guitar amp tube — it was also a \u003cstrong data-end=\"258\" data-start=\"205\"\u003efoundational tube in early American hi-fi systems\u003c\/strong\u003e.\u003c\/p\u003e\n\u003cp data-end=\"523\" data-start=\"261\"\u003eIn the 1950s and early 1960s, many U.S. hi-fi manufacturers used RCA small-signal tubes in their preamp and driver stages. \u003cstrong data-end=\"407\" data-start=\"384\"\u003eEarly McIntosh gear\u003c\/strong\u003e, along with equipment from brands like Fisher, Dynaco, and Scott, commonly relied on RCA 12AX7s during this period.\u003c\/p\u003e\n\u003cp data-end=\"758\" data-start=\"525\"\u003eOf course, \u003cstrong data-end=\"607\" data-start=\"536\"\u003eRCA itself was one of the most important hi-fi companies in history\u003c\/strong\u003e, producing everything from broadcast equipment to home audio systems. Their tubes helped define the sound of the golden age of American high fidelity.\u003c\/p\u003e\n\u003cp data-is-only-node=\"\" data-is-last-node=\"\" data-end=\"962\" data-start=\"760\"\u003eIn hi-fi applications, the RCA Black Plate is prized for its \u003cstrong data-end=\"878\" data-start=\"821\"\u003efull low end, rich midrange, and natural presentation\u003c\/strong\u003e, making it a favorite for vintage preamps, integrated amplifiers, and phono stages.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003ch3 data-end=\"1609\" data-start=\"1590\" data-section-id=\"1rcqwfc\"\u003eA Note on Noise\u003c\/h3\u003e\n\u003cp data-end=\"1838\" data-start=\"1611\"\u003eBecause these were early high-gain tubes, \u003cstrong data-end=\"1703\" data-start=\"1653\"\u003eblack plates can sometimes be a little noisier\u003c\/strong\u003e than later production tubes. If ultra-low noise or maximum clean headroom is your priority, another 12AX7 variant may be a better fit.\u003c\/p\u003e\n\u003cp data-end=\"1986\" data-start=\"1840\"\u003eBut if you're after \u003cstrong data-end=\"1911\" data-start=\"1860\"\u003ewarmth, early breakup, and classic vintage tone\u003c\/strong\u003e, the RCA Black Plate remains one of the most iconic 12AX7 tubes ever made.\u003c\/p\u003e\n\u003cp data-end=\"1986\" data-start=\"1840\"\u003e\u003ciframe width=\"560\" height=\"315\" src=\"https:\/\/www.youtube.com\/embed\/8V3BB_nqxVU?si=FSx47Pag4SLyyoaE\" title=\"YouTube video player\"\u003e\u003c\/iframe\u003e\u003c\/p\u003e\n\u003cp\u003e\u003ciframe width=\"560\" height=\"315\" src=\"https:\/\/www.youtube-nocookie.com\/embed\/ukcW1VpRK2w\"\u003e\u003c\/iframe\u003e\u003c\/p\u003e","brand":"Fuzz Audio","offers":[{"title":"NOS","offer_id":39296821264419,"sku":"RCA-X7-BP-N","price":200.0,"currency_code":"USD","in_stock":false},{"title":"Almost NOS (ANOS)","offer_id":41892591992867,"sku":null,"price":150.0,"currency_code":"USD","in_stock":false},{"title":"TEST NOS","offer_id":39296821297187,"sku":"RCA-X7-BP-T","price":110.0,"currency_code":"USD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0275\/0699\/9331\/products\/rca-black-plate-12ax7-nos-tubes-fuzz-audio-767775.jpg?v=1773175174"},{"product_id":"ge-kenrad-5y3gt","title":"GE\/KENRAD 5Y3GT","description":"\u003cdiv class=\"flex flex-col text-sm\"\u003e\n\u003carticle class=\"text-token-text-primary w-full focus:outline-none [--shadow-height:45px] has-data-writing-block:pointer-events-none has-data-writing-block:-mt-(--shadow-height) has-data-writing-block:pt-(--shadow-height) [\u0026amp;:has([data-writing-block])\u0026gt;*]:pointer-events-auto [content-visibility:auto] supports-[content-visibility:auto]:[contain-intrinsic-size:auto_100lvh] scroll-mt-[calc(var(--header-height)+min(200px,max(70px,20svh)))]\" dir=\"auto\" data-turn-id=\"d8d229ae-435d-41bd-8b95-b0c9015c78d6\" data-testid=\"conversation-turn-2\" data-scroll-anchor=\"true\" data-turn=\"assistant\" tabindex=\"-1\"\u003e\n\u003cdiv class=\"text-base my-auto mx-auto pb-10 [--thread-content-margin:--spacing(4)] @w-sm\/main:[--thread-content-margin:--spacing(6)] @w-lg\/main:[--thread-content-margin:--spacing(16)] px-(--thread-content-margin)\"\u003e\n\u003cdiv class=\"[--thread-content-max-width:40rem] @w-lg\/main:[--thread-content-max-width:48rem] mx-auto max-w-(--thread-content-max-width) flex-1 group\/turn-messages focus-visible:outline-hidden relative flex w-full min-w-0 flex-col agent-turn\" tabindex=\"-1\"\u003e\n\u003cdiv class=\"flex max-w-full flex-col grow\"\u003e\n\u003cdiv data-message-author-role=\"assistant\" data-message-id=\"f444d586-cc79-46ce-a8ff-136406b843d2\" dir=\"auto\" class=\"min-h-8 text-message relative flex w-full flex-col items-end gap-2 text-start break-words whitespace-normal [.text-message+\u0026amp;]:mt-1\" data-message-model-slug=\"gpt-5-2\"\u003e\n\u003cdiv class=\"flex w-full flex-col gap-1 empty:hidden first:pt-[1px]\"\u003e\n\u003cdiv class=\"markdown prose dark:prose-invert w-full wrap-break-word dark markdown-new-styling\"\u003e\n\u003cp data-start=\"42\" data-end=\"83\"\u003e\u003cstrong data-start=\"42\" data-end=\"83\"\u003eGE 5Y3GT Rectifier Tube (NOS Vintage)\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp data-start=\"85\" data-end=\"431\"\u003eThe \u003cstrong data-start=\"89\" data-end=\"101\"\u003eGE 5Y3GT\u003c\/strong\u003e is a classic American rectifier tube known for its smooth voltage sag, warm feel, and rock-solid reliability. Built by \u003cstrong data-start=\"221\" data-end=\"262\"\u003e\u003cspan class=\"hover:entity-accent entity-underline inline cursor-pointer align-baseline\"\u003e\u003cspan class=\"whitespace-normal\"\u003eGeneral Electric\u003c\/span\u003e\u003c\/span\u003e\u003c\/strong\u003e during the golden age of U.S. tube manufacturing, this is the rectifier that helped define the response of early Fender tweed amps and countless vintage hi-fi circuits.\u003c\/p\u003e\n\u003cp data-start=\"433\" data-end=\"765\"\u003eIn guitar amps, the 5Y3GT delivers a softer attack and natural compression compared to stiffer rectifiers, giving notes a touch of bloom and that unmistakable vintage “give.” It’s a big part of why small tweed amps feel alive under your fingers. In hi-fi gear, it’s prized for its smooth, noise-free operation and long service life.\u003c\/p\u003e\n\u003cp data-start=\"767\" data-end=\"813\"\u003e\u003cstrong data-start=\"767\" data-end=\"813\"\u003eWhy players and builders love the GE 5Y3GT\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul data-start=\"814\" data-end=\"1078\"\u003e\n\u003cli data-start=\"814\" data-end=\"863\"\u003e\n\u003cp data-start=\"816\" data-end=\"863\"\u003eWarm, vintage voltage sag and smooth dynamics\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"864\" data-end=\"947\"\u003e\n\u003cp data-start=\"866\" data-end=\"947\"\u003eClassic choice for tweed Fender–style circuits (Champ, Deluxe, Princeton, etc.)\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"948\" data-end=\"1006\"\u003e\n\u003cp data-start=\"950\" data-end=\"1006\"\u003eExtremely consistent and long-lasting NOS construction\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"1007\" data-end=\"1078\"\u003e\n\u003cp data-start=\"1009\" data-end=\"1078\"\u003eMade in the USA with rugged internal structure and tight tolerances\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp data-start=\"1080\" data-end=\"1104\"\u003e\u003cstrong data-start=\"1080\" data-end=\"1104\"\u003eTypical applications\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul data-start=\"1105\" data-end=\"1243\"\u003e\n\u003cli data-start=\"1105\" data-end=\"1150\"\u003e\n\u003cp data-start=\"1107\" data-end=\"1150\"\u003eGuitar amplifiers using 5Y3 rectification\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"1151\" data-end=\"1196\"\u003e\n\u003cp data-start=\"1153\" data-end=\"1196\"\u003eVintage hi-fi amplifiers and restorations\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"1197\" data-end=\"1243\"\u003e\n\u003cp data-start=\"1199\" data-end=\"1243\"\u003eFaithful period-correct builds and repairs\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp data-start=\"1245\" data-end=\"1438\" data-is-last-node=\"\" data-is-only-node=\"\"\u003eIf you’re chasing authentic tweed feel or want a rectifier that sounds and behaves the way vintage amps were meant to, the \u003cstrong data-start=\"1368\" data-end=\"1380\"\u003eGE 5Y3GT\u003c\/strong\u003e is as real as it gets—simple, musical, and built to last.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"mt-3 w-full empty:hidden\"\u003e\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/article\u003e\n\u003c\/div\u003e","brand":"Fuzz Audio","offers":[{"title":"KENRAD Black Plate (1940's-50's)","offer_id":39303986741283,"sku":"","price":35.0,"currency_code":"USD","in_stock":false},{"title":"GE Black Plate (Late 50's-60's)","offer_id":39303986774051,"sku":"","price":30.0,"currency_code":"USD","in_stock":true},{"title":"GE Grey Plate (Mid 60's-70's)","offer_id":39303986806819,"sku":"","price":25.0,"currency_code":"USD","in_stock":true},{"title":"Test NOS","offer_id":39303987298339,"sku":"","price":20.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0275\/0699\/9331\/products\/gekenrad-5y3gt-nos-tubes-fuzz-audio-610426.jpg?v=1770156764"},{"product_id":"rca-5751","title":"RCA 5751","description":"\u003cp\u003eDID YOU KNOW STEVIE RAY VAUGHN USED 5751s?!!\u003c\/p\u003e\n\u003cp\u003eRCA 5751 black plates are exceptional in for achieving unique creamy tones in guitar and hi-fi systems alike. These, along with GE 5-Star black plates, are unrivaled for this tube type.  \u003c\/p\u003e\n\u003cp\u003eStock is extremely limited.\u003c\/p\u003e\n\u003cp\u003eVisit \u003ca href=\"https:\/\/fuzzaudio.com\/category\/tube-buyers-guide\"\u003e“The Tube Buyer’s Guide”\u003c\/a\u003e to find the tubes that fit your play style the best!\u003c\/p\u003e","brand":"Fuzz Audio","offers":[{"title":"RCA 5751 Black Plate","offer_id":39465079242787,"sku":"","price":110.0,"currency_code":"USD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0275\/0699\/9331\/products\/rca-5751-nos-tubes-fuzz-audio-rca-5751-black-plate-164009.jpg?v=1633132959"},{"product_id":"rca-6aq5","title":"RCA 6AQ5","description":"Best 6AQ5 for any application. Our stock is true new in box NOS tubes in mint condition. These were found stock in Teletronix LA-2A, Fender, Ampeg, Silvertone, Airline, Valco, Danelectro and Hammond amplifiers, along with many more.","brand":"Fuzz Audio","offers":[{"title":"NOS Black Plate","offer_id":39572722253859,"sku":"","price":15.0,"currency_code":"USD","in_stock":false},{"title":"Test NOS Black Plate","offer_id":39572722286627,"sku":"","price":10.0,"currency_code":"USD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0275\/0699\/9331\/products\/rca-6aq5-nos-tubes-fuzz-audio-276468.jpg?v=1715467216"},{"product_id":"usa-12bh7","title":"USA 12BH7 Collection","description":"\u003ch1 data-start=\"179\" data-end=\"212\"\u003eUSA 12BH7 Vintage Vacuum Tube\u003c\/h1\u003e\n\u003cp data-start=\"213\" data-end=\"287\"\u003e\u003cstrong data-start=\"213\" data-end=\"287\"\u003eSylvania Grey Plate • GE Grey Plate • RCA Grey Plate • RCA Black Plate\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp data-start=\"289\" data-end=\"406\"\u003eThe \u003cstrong data-start=\"293\" data-end=\"302\"\u003e12BH7\u003c\/strong\u003e is a high-current, medium-gain dual triode used in driver stages, phase inverters, and hi-fi preamps.\u003c\/p\u003e\n\u003cp data-start=\"408\" data-end=\"475\"\u003eVintage USA-made 12BH7 tubes are sought after because they deliver:\u003c\/p\u003e\n\u003cp data-start=\"477\" data-end=\"606\"\u003e• Stronger current handling\u003cbr data-start=\"504\" data-end=\"507\"\u003e• Better headroom\u003cbr data-start=\"524\" data-end=\"527\"\u003e• Full, controlled low end\u003cbr data-start=\"553\" data-end=\"556\"\u003e• Smooth, dimensional mids\u003cbr data-start=\"582\" data-end=\"585\"\u003e• Long service life\u003c\/p\u003e\n\u003cp data-start=\"608\" data-end=\"753\"\u003eModern production 12BH7 tubes exist — but many players and audiophiles prefer \u003cstrong data-start=\"686\" data-end=\"707\"\u003evintage NOS 12BH7\u003c\/strong\u003e for their build quality, stability, and tone.\u003c\/p\u003e\n\u003cp data-start=\"755\" data-end=\"893\"\u003eThese were built in the USA during the golden age of American tube manufacturing. Thicker materials. Tighter tolerances. Proven longevity.\u003c\/p\u003e\n\u003ch2 data-start=\"1398\" data-end=\"1418\"\u003eAvailable Options\u003c\/h2\u003e\n\u003cdiv class=\"flex flex-col text-sm pb-25\"\u003e\n\u003carticle class=\"text-token-text-primary w-full focus:outline-none [--shadow-height:45px] has-data-writing-block:pointer-events-none has-data-writing-block:-mt-(--shadow-height) has-data-writing-block:pt-(--shadow-height) [\u0026amp;:has([data-writing-block])\u0026gt;*]:pointer-events-auto scroll-mt-[calc(var(--header-height)+min(200px,max(70px,20svh)))]\" dir=\"auto\" data-turn-id=\"request-WEB:dd2377a7-1f12-4158-b5ab-dd5b16adc69b-20\" data-testid=\"conversation-turn-39\" data-scroll-anchor=\"true\" data-turn=\"assistant\" tabindex=\"-1\"\u003e\n\u003cdiv class=\"text-base my-auto mx-auto pb-10 [--thread-content-margin:--spacing(4)] @w-sm\/main:[--thread-content-margin:--spacing(6)] @w-lg\/main:[--thread-content-margin:--spacing(16)] px-(--thread-content-margin)\"\u003e\n\u003cdiv class=\"[--thread-content-max-width:40rem] @w-lg\/main:[--thread-content-max-width:48rem] mx-auto max-w-(--thread-content-max-width) flex-1 group\/turn-messages focus-visible:outline-hidden relative flex w-full min-w-0 flex-col agent-turn\" tabindex=\"-1\"\u003e\n\u003cdiv class=\"flex max-w-full flex-col grow\"\u003e\n\u003cdiv data-message-author-role=\"assistant\" data-message-id=\"38181cc4-4ae4-479a-b1f9-0c4dd8c75149\" dir=\"auto\" data-message-model-slug=\"gpt-5-2\" class=\"min-h-8 text-message relative flex w-full flex-col items-end gap-2 text-start break-words whitespace-normal [.text-message+\u0026amp;]:mt-1\"\u003e\n\u003cdiv class=\"flex w-full flex-col gap-1 empty:hidden first:pt-[1px]\"\u003e\n\u003cdiv class=\"markdown prose dark:prose-invert w-full wrap-break-word dark markdown-new-styling\"\u003e\n\u003cp data-start=\"31\" data-end=\"241\" data-is-last-node=\"\" data-is-only-node=\"\"\u003e\u003cstrong data-start=\"31\" data-end=\"54\"\u003eSylvania Grey Plate\u003c\/strong\u003e – Balanced, clear, controlled.\u003cbr data-start=\"85\" data-end=\"88\" data-is-only-node=\"\"\u003e\u003cstrong data-start=\"88\" data-end=\"105\"\u003eGE Grey Plate\u003c\/strong\u003e – Clear, stable, warm.\u003cbr data-start=\"137\" data-end=\"140\"\u003e\u003cstrong data-start=\"140\" data-end=\"158\"\u003eRCA Grey Plate\u003c\/strong\u003e – Smooth, warm, articulate.\u003cbr data-start=\"186\" data-end=\"189\"\u003e\u003cstrong data-start=\"189\" data-end=\"208\"\u003eRCA Black Plate\u003c\/strong\u003e – Rich, deep, very warm\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"z-0 flex min-h-[46px] justify-start\"\u003e\n\u003cmeta charset=\"utf-8\"\u003e\n\u003cp data-start=\"1666\" data-end=\"1775\"\u003eAll tubes are fully tested, screened for noise, and matched upon request.\u003cbr data-start=\"1739\" data-end=\"1742\"\u003eBacked by our one-year guarantee.\u003c\/p\u003e\n\u003cp data-start=\"1777\" data-end=\"1914\"\u003eIf you’re running a vintage amp, classic hi-fi, or a circuit designed around the 12BH7, authentic USA production still sets the standard.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"mt-3 w-full empty:hidden\"\u003e\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/article\u003e\n\u003c\/div\u003e","brand":"Fuzz Audio","offers":[{"title":"Sylvania Grey Plate \/ NOS","offer_id":39641847103523,"sku":"","price":50.0,"currency_code":"USD","in_stock":true},{"title":"Sylvania Grey Plate \/ Test NOS","offer_id":39641847136291,"sku":"","price":30.0,"currency_code":"USD","in_stock":true},{"title":"GE Grey Plate \/ NOS","offer_id":39641847169059,"sku":"","price":55.0,"currency_code":"USD","in_stock":true},{"title":"GE Grey Plate \/ Test NOS","offer_id":39641847201827,"sku":"","price":35.0,"currency_code":"USD","in_stock":true},{"title":"RCA Grey Plate \/ NOS","offer_id":41988868276259,"sku":null,"price":80.0,"currency_code":"USD","in_stock":true},{"title":"RCA Grey Plate \/ Test NOS","offer_id":41988868309027,"sku":null,"price":65.0,"currency_code":"USD","in_stock":true},{"title":"RCA Black Plate \/ NOS","offer_id":41988868341795,"sku":null,"price":85.0,"currency_code":"USD","in_stock":true},{"title":"RCA Black Plate \/ Test NOS","offer_id":41988868374563,"sku":null,"price":125.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0275\/0699\/9331\/products\/usa-12bh7-nos-tubes-fuzz-audio-476891.jpg?v=1715472141"},{"product_id":"usa-12au7-brand-options","title":"USA 12AU7 Collection","description":"\u003cp\u003e \u003c\/p\u003e\n\u003cp data-mce-fragment=\"1\"\u003eVintage USA 12AU7 are notoriously warm and full in tone, but also their long life span. \u003cmeta charset=\"utf-8\"\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eUse black plates for extra low end and warmth.\u003c\/li\u003e\n\u003cli\u003eUse grey plates for less noise and definition of tone. \u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp data-mce-fragment=\"1\"\u003e\u003cstrong data-mce-fragment=\"1\"\u003eNeed help deciding what tubes are best for you?\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp data-mce-fragment=\"1\"\u003eUse our\u003cspan data-mce-fragment=\"1\"\u003e \u003c\/span\u003e\u003ca data-mce-fragment=\"1\" href=\"https:\/\/fuzzaudio.com\/vacuum-tubes-plate-cheat-sheet-fuzz-audio\" target=\"_blank\"\u003eplate cheat sheet\u003c\/a\u003e\u003cspan data-mce-fragment=\"1\"\u003e \u003c\/span\u003eand\u003cspan data-mce-fragment=\"1\"\u003e \u003c\/span\u003e\u003ca data-mce-fragment=\"1\" href=\"https:\/\/fuzzaudio.com\/category\/tube-buyers-guide\" target=\"_blank\"\u003evacuum tube buyers guide\u003c\/a\u003e\u003cspan data-mce-fragment=\"1\"\u003e \u003c\/span\u003eto determine which tubes are best for you. Likewise, you are welcome to reach out to us directly at\u003cspan data-mce-fragment=\"1\"\u003e \u003c\/span\u003e\u003ca data-mce-fragment=\"1\" href=\"mailto:Support@FuzzAudio.com\" target=\"_blank\"\u003eSupport@FuzzAudio.com\u003c\/a\u003e\u003cspan data-mce-fragment=\"1\"\u003e \u003c\/span\u003eor by using our chat located on our shop page if you have further questions.\u003c\/p\u003e\n\u003cp data-mce-fragment=\"1\"\u003e\u003cstrong data-mce-fragment=\"1\"\u003eNOS vs. ANOS vs. Test NOS\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp data-mce-fragment=\"1\"\u003eThese designations are strictly used to describe the cosmetic condition of our tubes. All tubes we sell test identically, come with 100% life and are guaranteed to work in your device!\u003c\/p\u003e\n\u003cp data-mce-fragment=\"1\"\u003eIf you are picky about owning an original box or wanting a specific logo please reach out to us\u003cspan data-mce-fragment=\"1\"\u003e \u003c\/span\u003e\u003cu data-mce-fragment=\"1\"\u003ebefore purchasing.\u003c\/u\u003e\u003c\/p\u003e\n\u003col data-mce-fragment=\"1\"\u003e\n\u003cli data-mce-fragment=\"1\"\u003e\n\u003cstrong data-mce-fragment=\"1\"\u003eNOS (New Old Stock) Tubes-\u003cspan data-mce-fragment=\"1\"\u003e \u003c\/span\u003e\u003c\/strong\u003eare 100% brand new vintage tubes in mint cosmetic condition with show zero signs of use. You should expect a legible logo and clean straight pins. An original box is likely but not guaranteed. \u003c\/li\u003e\n\u003c\/ol\u003e\n\u003col data-mce-fragment=\"1\" start=\"2\"\u003e\n\u003cli data-mce-fragment=\"1\"\u003e\n\u003cstrong data-mce-fragment=\"1\"\u003e\u003c\/strong\u003e\u003cstrong data-mce-fragment=\"1\"\u003eANOS Tubes-\u003c\/strong\u003e\u003cspan data-mce-fragment=\"1\"\u003e \u003c\/span\u003eotherwise known as “almost new old stock” tubes are basically new, but may show slight signs of use in cosmetic condition, such as a missing logo or slightly bent pins. An original box is possible but unlikely.\u003cstrong data-mce-fragment=\"1\"\u003e \u003c\/strong\u003e\n\u003c\/li\u003e\n\u003c\/ol\u003e\n\u003col data-mce-fragment=\"1\" start=\"3\"\u003e\n\u003cli data-mce-fragment=\"1\"\u003e\n\u003cstrong data-mce-fragment=\"1\"\u003eTest NOS Tubes-\u003cspan data-mce-fragment=\"1\"\u003e \u003c\/span\u003e\u003c\/strong\u003eare used but still operating to specification with 100% life. These tubes are equal in function to NOS valves, yet they cost considerably less because they have cosmetic blemishes. If you plan to disappear your tubes into the back of an amplifier or do not care what the tubes look like, then this is cost effective choice. Blemishes and cosmetic imperfections do not affect tone…\u003c\/li\u003e\n\u003c\/ol\u003e\n\u003cp data-mce-fragment=\"1\"\u003e\u003cstrong data-mce-fragment=\"1\"\u003eLogos:\u003c\/strong\u003e\u003cspan data-mce-fragment=\"1\"\u003e \u003c\/span\u003eVintage tubes have a wide variety of logos printed on them. It is not uncommon to see a Mullard made tube with an RCA or GE logo, or a GE made tube with a Mullard logo. Your tube may come with a logo such are Heath Kit, Baldwin, Fisher, Hammond, Magnavox, Fender, Gibson, Silvertone, etc. but the true manufacturer of that tube will be correct to your order. If you are looking for a specific logo please reach out before purchase.\u003c\/p\u003e\n\u003cp data-mce-fragment=\"1\"\u003e\u003cstrong data-mce-fragment=\"1\"\u003e\u003c\/strong\u003e\u003cstrong data-mce-fragment=\"1\"\u003eOur Standards:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul data-mce-fragment=\"1\"\u003e\n\u003cli data-mce-fragment=\"1\"\u003eAll tubes are tested for \u003cstrong data-mce-fragment=\"1\"\u003emicrophonics \u003c\/strong\u003eand are guaranteed to work in sensitive audio applications\u003c\/li\u003e\n\u003cli data-mce-fragment=\"1\"\u003eAll tubes sold are guaranteed to have strong (to spec) NOS test scores with 100% life\u003c\/li\u003e\n\u003cli data-mce-fragment=\"1\"\u003eAll tubes are tested on a calibrated Hickok 539C, Maxi-Matcher, E-Tracer or other industry standard tube analyzers\u003c\/li\u003e\n\u003cli data-mce-fragment=\"1\"\u003e\u003cstrong data-mce-fragment=\"1\"\u003eTubes are guaranteed for one year and can be returned within 30 days\u003c\/strong\u003e\u003c\/li\u003e\n\u003cli data-mce-fragment=\"1\"\u003ePreamp tubes matched by gain and mutual conductance (Gm)\u003c\/li\u003e\n\u003cli data-mce-fragment=\"1\"\u003ePower tubes matched by mA and Gm\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp data-mce-fragment=\"1\"\u003eDon’t forget to email\u003cspan data-mce-fragment=\"1\"\u003e \u003c\/span\u003e\u003ca data-mce-fragment=\"1\" href=\"mailto:Support@fuzzaudio.com\" target=\"_blank\"\u003eSupport@fuzzaudio.com\u003c\/a\u003e\u003cspan data-mce-fragment=\"1\"\u003e \u003c\/span\u003eor reach out to us via chat if you need help picking out valves for your device.\u003c\/p\u003e","brand":"Fuzz Audio","offers":[{"title":"Sylvania Long Grey Plate \/ NOS","offer_id":39642360119331,"sku":"","price":40.0,"currency_code":"USD","in_stock":true},{"title":"Sylvania Long Grey Plate \/ Tests NOS","offer_id":39642360152099,"sku":"","price":25.0,"currency_code":"USD","in_stock":true},{"title":"GE Short Grey Plate \/ NOS","offer_id":39642360381475,"sku":"","price":40.0,"currency_code":"USD","in_stock":true},{"title":"GE Short Grey Plate \/ Tests NOS","offer_id":39642360414243,"sku":"","price":25.0,"currency_code":"USD","in_stock":true},{"title":"Tung-Sol Long Grey Plate \/ NOS","offer_id":39642360774691,"sku":"","price":60.0,"currency_code":"USD","in_stock":true},{"title":"Tung-Sol Long Grey Plate \/ Tests NOS","offer_id":39642360807459,"sku":"","price":35.0,"currency_code":"USD","in_stock":true},{"title":"RCA 12AX7 Long Grey Plate \/ NOS","offer_id":41892449419299,"sku":null,"price":70.0,"currency_code":"USD","in_stock":true},{"title":"RCA 12AX7 Long Grey Plate \/ Tests NOS","offer_id":41892449452067,"sku":null,"price":45.0,"currency_code":"USD","in_stock":true},{"title":"RCA 12AX7 Clear Plate \/ NOS","offer_id":41892449484835,"sku":null,"price":75.0,"currency_code":"USD","in_stock":true},{"title":"RCA 12AX7 Clear Plate \/ Tests NOS","offer_id":41892449517603,"sku":null,"price":50.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0275\/0699\/9331\/products\/usa-12au7-brand-options-audio-components-fuzz-audio-281074.jpg?v=1715472352"},{"product_id":"rca-5u4gb","title":"RCA 5U4GB","description":"\u003cmeta charset=\"utf-8\"\u003e\n\u003cp data-mce-fragment=\"1\"\u003eRCA 5U4GB would have been found stock in vintage Fender, Gibson, Silvertone and numerous other vintage hifi and guitar amplifiers. They are known for their longevity and ruggedness. \u003c\/p\u003e\n\u003ch2 data-mce-fragment=\"1\"\u003e\u003cstrong data-mce-fragment=\"1\"\u003eHere are a things to remember:\u003c\/strong\u003e\u003c\/h2\u003e\n\u003cul data-mce-fragment=\"1\"\u003e\n\u003cli data-mce-fragment=\"1\"\u003eShorter plates are less noisy (on average)\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cul data-mce-fragment=\"1\"\u003e\n\u003cli data-mce-fragment=\"1\"\u003eLonger plates are tonally more complex i.e. more \"depth\/fullness\" (on average)\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cul data-mce-fragment=\"1\"\u003e\n\u003cli data-mce-fragment=\"1\"\u003e\n\u003cstrong data-mce-fragment=\"1\"\u003eReach out to a Fuzz expert\u003c\/strong\u003e\u003cspan data-mce-fragment=\"1\"\u003e \u003c\/span\u003eif you would like more help determining what tubes are best for you! We can be reached at Support@FuzzAudio.com or by clicking the chat icon in the lower right hand corner of your screen. \u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3 data-mce-fragment=\"1\"\u003e\u003cstrong data-mce-fragment=\"1\"\u003eNeed help deciding what tubes are best for you?\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cp data-mce-fragment=\"1\"\u003eUse our\u003cspan data-mce-fragment=\"1\"\u003e \u003c\/span\u003e\u003ca href=\"https:\/\/fuzzaudio.com\/vacuum-tubes-plate-cheat-sheet-fuzz-audio\" data-mce-fragment=\"1\" data-mce-href=\"https:\/\/fuzzaudio.com\/vacuum-tubes-plate-cheat-sheet-fuzz-audio\" target=\"_blank\"\u003eplate cheat sheet\u003c\/a\u003e\u003cspan data-mce-fragment=\"1\"\u003e \u003c\/span\u003eand\u003cspan data-mce-fragment=\"1\"\u003e \u003c\/span\u003e\u003ca href=\"https:\/\/fuzzaudio.com\/category\/tube-buyers-guide\" data-mce-fragment=\"1\" data-mce-href=\"https:\/\/fuzzaudio.com\/category\/tube-buyers-guide\" target=\"_blank\"\u003evacuum tube buyers guide\u003c\/a\u003e\u003cspan data-mce-fragment=\"1\"\u003e \u003c\/span\u003eto determine which tubes are best for you. Likewise, you are welcome to reach out to us directly at\u003cspan data-mce-fragment=\"1\"\u003e \u003c\/span\u003e\u003ca href=\"mailto:Support@FuzzAudio.com\" data-mce-fragment=\"1\" data-mce-href=\"mailto:Support@FuzzAudio.com\" target=\"_blank\"\u003eSupport@FuzzAudio.com\u003c\/a\u003e\u003cspan data-mce-fragment=\"1\"\u003e \u003c\/span\u003eor by using our chat located on our shop page if you have further questions.\u003c\/p\u003e\n\u003cp data-mce-fragment=\"1\"\u003e\u003cstrong data-mce-fragment=\"1\"\u003eNOS vs. ANOS vs. Test NOS\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp data-mce-fragment=\"1\"\u003eThese designations are strictly used to describe the cosmetic condition of our tubes. All tubes we sell test identically, come with 100% life and are guaranteed to work in your device!\u003c\/p\u003e\n\u003cp data-mce-fragment=\"1\"\u003eIf you are picky about owning an original box or wanting a specific logo please reach out to us\u003cspan data-mce-fragment=\"1\"\u003e \u003c\/span\u003e\u003cu data-mce-fragment=\"1\"\u003ebefore purchasing.\u003c\/u\u003e\u003c\/p\u003e\n\u003col data-mce-fragment=\"1\"\u003e\n\u003cli data-mce-fragment=\"1\"\u003e\n\u003cstrong data-mce-fragment=\"1\"\u003eNOS (New Old Stock) Tubes-\u003cspan data-mce-fragment=\"1\"\u003e \u003c\/span\u003e\u003c\/strong\u003eare 100% brand new vintage tubes in mint cosmetic condition with show zero signs of use. You should expect a legible logo and clean straight pins. An original box is likely but not guaranteed. \u003c\/li\u003e\n\u003c\/ol\u003e\n\u003col start=\"2\" data-mce-fragment=\"1\"\u003e\n\u003cli data-mce-fragment=\"1\"\u003e\n\u003cstrong data-mce-fragment=\"1\"\u003e\u003c\/strong\u003e\u003cstrong data-mce-fragment=\"1\"\u003eANOS Tubes-\u003c\/strong\u003e\u003cspan data-mce-fragment=\"1\"\u003e \u003c\/span\u003eotherwise known as “almost new old stock” tubes are basically new, but may show slight signs of use in cosmetic condition, such as a missing logo or slightly bent pins. An original box is possible but unlikely.\u003cstrong data-mce-fragment=\"1\"\u003e \u003c\/strong\u003e\n\u003c\/li\u003e\n\u003c\/ol\u003e\n\u003col start=\"3\" data-mce-fragment=\"1\"\u003e\n\u003cli data-mce-fragment=\"1\"\u003e\n\u003cstrong data-mce-fragment=\"1\"\u003eTest NOS Tubes-\u003cspan data-mce-fragment=\"1\"\u003e \u003c\/span\u003e\u003c\/strong\u003eare used but still operating to specification with 100% life. These tubes are equal in function to NOS valves, yet they cost considerably less because they have cosmetic blemishes. If you plan to disappear your tubes into the back of an amplifier or do not care what the tubes look like, then this is cost effective choice. Blemishes and cosmetic imperfections do not affect tone…\u003c\/li\u003e\n\u003c\/ol\u003e\n\u003cp data-mce-fragment=\"1\"\u003e\u003cstrong data-mce-fragment=\"1\"\u003eLogos:\u003c\/strong\u003e\u003cspan data-mce-fragment=\"1\"\u003e \u003c\/span\u003eVintage tubes have a wide variety of logos printed on them. It is not uncommon to see a Mullard made tube with an RCA or GE logo, or a GE made tube with a Mullard logo. Your tube may come with a logo such are Heath Kit, Baldwin, Fisher, Hammond, Magnavox, Fender, Gibson, Silvertone, etc. but the true manufacturer of that tube will be correct to your order. If you are looking for a specific logo please reach out before purchase.\u003c\/p\u003e\n\u003cp data-mce-fragment=\"1\"\u003e\u003cstrong data-mce-fragment=\"1\"\u003e\u003c\/strong\u003e\u003cstrong data-mce-fragment=\"1\"\u003eOur Standards:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul data-mce-fragment=\"1\"\u003e\n\u003cli data-mce-fragment=\"1\"\u003eAll tubes are tested for \u003cstrong data-mce-fragment=\"1\"\u003emicrophonics \u003c\/strong\u003eand are guaranteed to work in sensitive audio applications\u003c\/li\u003e\n\u003cli data-mce-fragment=\"1\"\u003eAll tubes sold are guaranteed to have strong (to spec) NOS test scores with 100% life\u003c\/li\u003e\n\u003cli data-mce-fragment=\"1\"\u003eAll tubes are tested on a calibrated Hickok 539C, Maxi-Matcher, E-Tracer or other industry standard tube analyzers\u003c\/li\u003e\n\u003cli data-mce-fragment=\"1\"\u003e\u003cstrong data-mce-fragment=\"1\"\u003eTubes are guaranteed for one year and can be returned within 30 days\u003c\/strong\u003e\u003c\/li\u003e\n\u003cli data-mce-fragment=\"1\"\u003ePreamp tubes matched by gain and mutual conductance (Gm)\u003c\/li\u003e\n\u003cli data-mce-fragment=\"1\"\u003ePower tubes matched by mA and Gm\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp data-mce-fragment=\"1\"\u003eDon’t forget to email\u003cspan data-mce-fragment=\"1\"\u003e \u003c\/span\u003e\u003ca href=\"mailto:Support@fuzzaudio.com\" data-mce-fragment=\"1\" data-mce-href=\"mailto:Support@fuzzaudio.com\" target=\"_blank\"\u003eSupport@fuzzaudio.com\u003c\/a\u003e\u003cspan data-mce-fragment=\"1\"\u003e \u003c\/span\u003eor reach out to us via chat if you need help picking out valves for your device.\u003c\/p\u003e","brand":"Fuzz Audio","offers":[{"title":"NOS","offer_id":39792272441379,"sku":"","price":50.0,"currency_code":"USD","in_stock":true},{"title":"Tests NOS","offer_id":39792272474147,"sku":"","price":40.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0275\/0699\/9331\/products\/rca-5u4gb-fuzz-audio-892179.jpg?v=1715467445"},{"product_id":"tung-sol-5u4gb","title":"Tung-Sol 5U4GB","description":"\u003cmeta charset=\"utf-8\"\u003e\n\u003cp data-mce-fragment=\"1\"\u003eTung-Sol 5U4GB are rarer than most 5U4 types and are known for their unique construction and getter types. Does that mean they sound better?... find our for yourself!\u003c\/p\u003e\n\u003cp data-mce-fragment=\"1\"\u003e\u003cstrong data-mce-fragment=\"1\"\u003eHere are a things to remember:\u003c\/strong\u003e\u003cbr\u003e\u003c\/p\u003e\n\u003cul data-mce-fragment=\"1\"\u003e\n\u003cli data-mce-fragment=\"1\"\u003eShorter plates are less noisy (on average)\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cul data-mce-fragment=\"1\"\u003e\n\u003cli data-mce-fragment=\"1\"\u003eLonger plates are tonally more complex i.e. more \"depth\/fullness\" (on average)\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cul data-mce-fragment=\"1\"\u003e\n\u003cli data-mce-fragment=\"1\"\u003e\n\u003cstrong data-mce-fragment=\"1\"\u003eReach out to a Fuzz expert\u003c\/strong\u003e\u003cspan data-mce-fragment=\"1\"\u003e \u003c\/span\u003eif you would like more help determining what tubes are best for you! We can be reached at Support@FuzzAudio.com or by clicking the chat icon in the lower right hand corner of your screen. \u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3 data-mce-fragment=\"1\"\u003e\u003cstrong data-mce-fragment=\"1\"\u003eNeed help deciding what tubes are best for you?\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cp data-mce-fragment=\"1\"\u003eUse our\u003cspan data-mce-fragment=\"1\"\u003e \u003c\/span\u003e\u003ca href=\"https:\/\/fuzzaudio.com\/vacuum-tubes-plate-cheat-sheet-fuzz-audio\" data-mce-fragment=\"1\" data-mce-href=\"https:\/\/fuzzaudio.com\/vacuum-tubes-plate-cheat-sheet-fuzz-audio\" target=\"_blank\"\u003eplate cheat sheet\u003c\/a\u003e\u003cspan data-mce-fragment=\"1\"\u003e \u003c\/span\u003eand\u003cspan data-mce-fragment=\"1\"\u003e \u003c\/span\u003e\u003ca href=\"https:\/\/fuzzaudio.com\/category\/tube-buyers-guide\" data-mce-fragment=\"1\" data-mce-href=\"https:\/\/fuzzaudio.com\/category\/tube-buyers-guide\" target=\"_blank\"\u003evacuum tube buyers guide\u003c\/a\u003e\u003cspan data-mce-fragment=\"1\"\u003e \u003c\/span\u003eto determine which tubes are best for you. Likewise, you are welcome to reach out to us directly at\u003cspan data-mce-fragment=\"1\"\u003e \u003c\/span\u003e\u003ca href=\"mailto:Support@FuzzAudio.com\" data-mce-fragment=\"1\" data-mce-href=\"mailto:Support@FuzzAudio.com\" target=\"_blank\"\u003eSupport@FuzzAudio.com\u003c\/a\u003e\u003cspan data-mce-fragment=\"1\"\u003e \u003c\/span\u003eor by using our chat located on our shop page if you have further questions.\u003c\/p\u003e\n\u003cp data-mce-fragment=\"1\"\u003e\u003cstrong data-mce-fragment=\"1\"\u003eNOS vs. ANOS vs. Test NOS\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp data-mce-fragment=\"1\"\u003eThese designations are strictly used to describe the cosmetic condition of our tubes. All tubes we sell test identically, come with 100% life and are guaranteed to work in your device!\u003c\/p\u003e\n\u003cp data-mce-fragment=\"1\"\u003eIf you are picky about owning an original box or wanting a specific logo please reach out to us\u003cspan data-mce-fragment=\"1\"\u003e \u003c\/span\u003e\u003cu data-mce-fragment=\"1\"\u003ebefore purchasing.\u003c\/u\u003e\u003c\/p\u003e\n\u003col data-mce-fragment=\"1\"\u003e\n\u003cli data-mce-fragment=\"1\"\u003e\n\u003cstrong data-mce-fragment=\"1\"\u003eNOS (New Old Stock) Tubes-\u003cspan data-mce-fragment=\"1\"\u003e \u003c\/span\u003e\u003c\/strong\u003eare 100% brand new vintage tubes in mint cosmetic condition with show zero signs of use. You should expect a legible logo and clean straight pins. An original box is likely but not guaranteed. \u003c\/li\u003e\n\u003c\/ol\u003e\n\u003col start=\"2\" data-mce-fragment=\"1\"\u003e\n\u003cli data-mce-fragment=\"1\"\u003e\n\u003cstrong data-mce-fragment=\"1\"\u003e\u003c\/strong\u003e\u003cstrong data-mce-fragment=\"1\"\u003eANOS Tubes-\u003c\/strong\u003e\u003cspan data-mce-fragment=\"1\"\u003e \u003c\/span\u003eotherwise known as “almost new old stock” tubes are basically new, but may show slight signs of use in cosmetic condition, such as a missing logo or slightly bent pins. An original box is possible but unlikely.\u003cstrong data-mce-fragment=\"1\"\u003e \u003c\/strong\u003e\n\u003c\/li\u003e\n\u003c\/ol\u003e\n\u003col start=\"3\" data-mce-fragment=\"1\"\u003e\n\u003cli data-mce-fragment=\"1\"\u003e\n\u003cstrong data-mce-fragment=\"1\"\u003eTest NOS Tubes-\u003cspan data-mce-fragment=\"1\"\u003e \u003c\/span\u003e\u003c\/strong\u003eare used but still operating to specification with 100% life. These tubes are equal in function to NOS valves, yet they cost considerably less because they have cosmetic blemishes. If you plan to disappear your tubes into the back of an amplifier or do not care what the tubes look like, then this is cost effective choice. Blemishes and cosmetic imperfections do not affect tone…\u003c\/li\u003e\n\u003c\/ol\u003e\n\u003cp data-mce-fragment=\"1\"\u003e\u003cstrong data-mce-fragment=\"1\"\u003eLogos:\u003c\/strong\u003e\u003cspan data-mce-fragment=\"1\"\u003e \u003c\/span\u003eVintage tubes have a wide variety of logos printed on them. It is not uncommon to see a Mullard made tube with an RCA or GE logo, or a GE made tube with a Mullard logo. Your tube may come with a logo such are Heath Kit, Baldwin, Fisher, Hammond, Magnavox, Fender, Gibson, Silvertone, etc. but the true manufacturer of that tube will be correct to your order. If you are looking for a specific logo please reach out before purchase.\u003c\/p\u003e\n\u003cp data-mce-fragment=\"1\"\u003e\u003cstrong data-mce-fragment=\"1\"\u003e\u003c\/strong\u003e\u003cstrong data-mce-fragment=\"1\"\u003eOur Standards:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul data-mce-fragment=\"1\"\u003e\n\u003cli data-mce-fragment=\"1\"\u003eAll tubes are tested for \u003cstrong data-mce-fragment=\"1\"\u003emicrophonics \u003c\/strong\u003eand are guaranteed to work in sensitive audio applications\u003c\/li\u003e\n\u003cli data-mce-fragment=\"1\"\u003eAll tubes sold are guaranteed to have strong (to spec) NOS test scores with 100% life\u003c\/li\u003e\n\u003cli data-mce-fragment=\"1\"\u003eAll tubes are tested on a calibrated Hickok 539C, Maxi-Matcher, E-Tracer or other industry standard tube analyzers\u003c\/li\u003e\n\u003cli data-mce-fragment=\"1\"\u003e\u003cstrong data-mce-fragment=\"1\"\u003eTubes are guaranteed for one year and can be returned within 30 days\u003c\/strong\u003e\u003c\/li\u003e\n\u003cli data-mce-fragment=\"1\"\u003ePreamp tubes matched by gain and mutual conductance (Gm)\u003c\/li\u003e\n\u003cli data-mce-fragment=\"1\"\u003ePower tubes matched by mA and Gm\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp data-mce-fragment=\"1\"\u003eDon’t forget to email\u003cspan data-mce-fragment=\"1\"\u003e \u003c\/span\u003e\u003ca href=\"mailto:Support@fuzzaudio.com\" data-mce-fragment=\"1\" data-mce-href=\"mailto:Support@fuzzaudio.com\" target=\"_blank\"\u003eSupport@fuzzaudio.com\u003c\/a\u003e\u003cspan data-mce-fragment=\"1\"\u003e \u003c\/span\u003eor reach out to us via chat if you need help picking out valves for your device.\u003c\/p\u003e","brand":"Fuzz Audio","offers":[{"title":"NOS","offer_id":39792272900131,"sku":null,"price":45.0,"currency_code":"USD","in_stock":false},{"title":"Tests NOS","offer_id":39792272932899,"sku":null,"price":35.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0275\/0699\/9331\/products\/tung-sol-5u4gb-audio-components-fuzz-audio-804485.jpg?v=1715463509"},{"product_id":"raytheon-5y3gt","title":"Raytheon 5Y3GT","description":"\u003cmeta charset=\"utf-8\"\u003e\n\u003cp data-mce-fragment=\"1\"\u003eRaytheon is a household name to this day for a reason, and that reason is quality. Very few American tubes are as consistent as Raytheon valves. In our experience, Raytheon tubes have a lower rejection rate, stronger, closer match test scores, and a lower noise floor than better selling brands like GE, Tung-Sol, and even RCA. \u003c\/p\u003e\n\u003cp data-mce-fragment=\"1\"\u003eSo why are Raytheon tubes not as popular and less talked about than other vintage tube brands? Simple... they are rarer and older than most other brands, which means less people have got the chance to try them and people go with what they know. Beyond that, there is a little bit of brand prejudice happening where people just assume RCA and Tung-Sol tubes are better (for example). \u003c\/p\u003e\n\u003cp data-mce-fragment=\"1\"\u003eThe good news is, although Raytheon tubes are rare and hard to find, their price is still a lower than other brands simply because people do not know about them.  This makes them an incredible value. Do not even consider buying new. Yuck. \u003cbr data-mce-fragment=\"1\"\u003e\u003c\/p\u003e\n\u003ch3 data-mce-fragment=\"1\"\u003e\u003cstrong data-mce-fragment=\"1\"\u003eNeed help deciding what tubes are best for you?\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cp data-mce-fragment=\"1\"\u003eUse our\u003cspan data-mce-fragment=\"1\"\u003e \u003c\/span\u003e\u003ca href=\"https:\/\/fuzzaudio.com\/vacuum-tubes-plate-cheat-sheet-fuzz-audio\" data-mce-fragment=\"1\" target=\"_blank\" data-mce-href=\"https:\/\/fuzzaudio.com\/vacuum-tubes-plate-cheat-sheet-fuzz-audio\"\u003eplate cheat sheet\u003c\/a\u003e\u003cspan data-mce-fragment=\"1\"\u003e \u003c\/span\u003eand\u003cspan data-mce-fragment=\"1\"\u003e \u003c\/span\u003e\u003ca href=\"https:\/\/fuzzaudio.com\/category\/tube-buyers-guide\" data-mce-fragment=\"1\" target=\"_blank\" data-mce-href=\"https:\/\/fuzzaudio.com\/category\/tube-buyers-guide\"\u003evacuum tube buyers guide\u003c\/a\u003e\u003cspan data-mce-fragment=\"1\"\u003e \u003c\/span\u003eto determine which tubes are best for you. Likewise, you are welcome to reach out to us directly at\u003cspan data-mce-fragment=\"1\"\u003e \u003c\/span\u003e\u003ca href=\"mailto:Support@FuzzAudio.com\" data-mce-fragment=\"1\" target=\"_blank\" data-mce-href=\"mailto:Support@FuzzAudio.com\"\u003eSupport@FuzzAudio.com\u003c\/a\u003e\u003cspan data-mce-fragment=\"1\"\u003e \u003c\/span\u003eor by using our chat located on our shop page if you have further questions.\u003c\/p\u003e\n\u003cp data-mce-fragment=\"1\"\u003e\u003cstrong data-mce-fragment=\"1\"\u003eNOS vs. ANOS vs. Test NOS\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp data-mce-fragment=\"1\"\u003eThese designations are strictly used to describe the cosmetic condition of our tubes. All tubes we sell test identically, come with 100% life and are guaranteed to work in your device!\u003c\/p\u003e\n\u003cp data-mce-fragment=\"1\"\u003eIf you are picky about owning an original box or wanting a specific logo please reach out to us\u003cspan data-mce-fragment=\"1\"\u003e \u003c\/span\u003e\u003cu data-mce-fragment=\"1\"\u003ebefore purchasing.\u003c\/u\u003e\u003c\/p\u003e\n\u003col data-mce-fragment=\"1\"\u003e\n\u003cli data-mce-fragment=\"1\"\u003e\n\u003cstrong data-mce-fragment=\"1\"\u003eNOS (New Old Stock) Tubes-\u003cspan data-mce-fragment=\"1\"\u003e \u003c\/span\u003e\u003c\/strong\u003eare 100% brand new vintage tubes in mint cosmetic condition with show zero signs of use. You should expect a legible logo and clean straight pins. An original box is likely but not guaranteed. \u003c\/li\u003e\n\u003c\/ol\u003e\n\u003col start=\"2\" data-mce-fragment=\"1\"\u003e\n\u003cli data-mce-fragment=\"1\"\u003e\n\u003cstrong data-mce-fragment=\"1\"\u003e\u003c\/strong\u003e\u003cstrong data-mce-fragment=\"1\"\u003eANOS Tubes-\u003c\/strong\u003e\u003cspan data-mce-fragment=\"1\"\u003e \u003c\/span\u003eotherwise known as “almost new old stock” tubes are basically new, but may show slight signs of use in cosmetic condition, such as a missing logo or slightly bent pins. An original box is possible but unlikely.\u003cstrong data-mce-fragment=\"1\"\u003e \u003c\/strong\u003e\n\u003c\/li\u003e\n\u003c\/ol\u003e\n\u003col start=\"3\" data-mce-fragment=\"1\"\u003e\n\u003cli data-mce-fragment=\"1\"\u003e\n\u003cstrong data-mce-fragment=\"1\"\u003eTest NOS Tubes-\u003cspan data-mce-fragment=\"1\"\u003e \u003c\/span\u003e\u003c\/strong\u003eare used but still operating to specification with 100% life. These tubes are equal in function to NOS valves, yet they cost considerably less because they have cosmetic blemishes. If you plan to disappear your tubes into the back of an amplifier or do not care what the tubes look like, then this is cost effective choice. Blemishes and cosmetic imperfections do not affect tone…\u003c\/li\u003e\n\u003c\/ol\u003e\n\u003cp data-mce-fragment=\"1\"\u003e\u003cstrong data-mce-fragment=\"1\"\u003eLogos:\u003c\/strong\u003e\u003cspan data-mce-fragment=\"1\"\u003e \u003c\/span\u003eVintage tubes have a wide variety of logos printed on them. It is not uncommon to see a Mullard made tube with an RCA or GE logo, or a GE made tube with a Mullard logo. Your tube may come with a logo such are Heath Kit, Baldwin, Fisher, Hammond, Magnavox, Fender, Gibson, Silvertone, etc. but the true manufacturer of that tube will be correct to your order. If you are looking for a specific logo please reach out before purchase.\u003c\/p\u003e\n\u003cp data-mce-fragment=\"1\"\u003e\u003cstrong data-mce-fragment=\"1\"\u003e\u003c\/strong\u003e\u003cstrong data-mce-fragment=\"1\"\u003eOur Standards:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul data-mce-fragment=\"1\"\u003e\n\u003cli data-mce-fragment=\"1\"\u003eAll tubes are tested for \u003cstrong data-mce-fragment=\"1\"\u003emicrophonics \u003c\/strong\u003eand are guaranteed to work in sensitive audio applications\u003c\/li\u003e\n\u003cli data-mce-fragment=\"1\"\u003eAll tubes sold are guaranteed to have strong (to spec) NOS test scores with 100% life\u003c\/li\u003e\n\u003cli data-mce-fragment=\"1\"\u003eAll tubes are tested on a calibrated Hickok 539C, Maxi-Matcher, E-Tracer or other industry standard tube analyzers\u003c\/li\u003e\n\u003cli data-mce-fragment=\"1\"\u003e\u003cstrong data-mce-fragment=\"1\"\u003eTubes are guaranteed for one year and can be returned within 30 days\u003c\/strong\u003e\u003c\/li\u003e\n\u003cli data-mce-fragment=\"1\"\u003ePreamp tubes matched by gain and mutual conductance (Gm)\u003c\/li\u003e\n\u003cli data-mce-fragment=\"1\"\u003ePower tubes matched by mA and Gm\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp data-mce-fragment=\"1\"\u003eDon’t forget to email\u003cspan data-mce-fragment=\"1\"\u003e \u003c\/span\u003e\u003ca href=\"mailto:Support@fuzzaudio.com\" data-mce-fragment=\"1\" target=\"_blank\" data-mce-href=\"mailto:Support@fuzzaudio.com\"\u003eSupport@fuzzaudio.com\u003c\/a\u003e\u003cspan data-mce-fragment=\"1\"\u003e \u003c\/span\u003eor reach out to us via chat if you need help picking out valves for your device.\u003c\/p\u003e","brand":"Fuzz Audio","offers":[{"title":"NOS","offer_id":39924099776547,"sku":"","price":40.0,"currency_code":"USD","in_stock":false},{"title":"Tests NOS","offer_id":39924099809315,"sku":"","price":35.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0275\/0699\/9331\/products\/raytheon-5y3gt-nos-tubes-fuzz-audio-nos-308145.jpg?v=1715476942"},{"product_id":"ge-12ay7-grey-plates","title":"GE 12AY7 Grey Plates","description":"\u003cmeta charset=\"utf-8\"\u003e\n\u003cp\u003eIntroducing the \u003cstrong\u003eGE 12AY7 Grey Plate\u003c\/strong\u003e, a vacuum tube with a sound quality that will make your audio truly shine! While similar to its cousin, the Black Plate GE 6072\/12AY7, the grey plate variation offers a unique sound and comes at a more affordable price point.\u003c\/p\u003e\n\u003cp\u003eWhat sets the grey plates apart from the black plates is their construction. The grey plates have a different internal structure and materials, resulting in a slightly brighter sound with more emphasis on the midrange frequencies. This makes them perfect for guitarists looking to cut through the mix or for those who prefer a more defined sound in their recordings. Compared to any modern tube, the GE 12AY7 is warmer, richer and deeper.\u003c\/p\u003e\n\u003cp\u003eDon't let the lower price point fool you; the grey plates are built to last just like the black plates. They are sturdy, reliable, and made to withstand the rigors of both studio and live performance. Plus, they have a low noise floor, allowing you to capture or enjoy your audio with greater clarity and detail.\u003c\/p\u003e\n\u003cp\u003eIf you're looking for a tube that offers a unique sound without breaking the bank, the GE 12AY7 grey plates are the perfect choice. Whether you're a musician, recording engineer, or audiophile, you won't be disappointed with the quality and value these tubes provide. So why wait? Order yours today and experience the magic of the grey plates!\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eBox Plates:\u003c\/strong\u003e older version of the grey plate, louder noise floor, warmer than the standard grey plate, good for guitar amps\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eStandard Grey Plate:\u003c\/strong\u003e lower noise floor, more reliable construction, great for guitar, hifi, and microphones\/recording gear. \u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eBlack Box Plate: \u003c\/strong\u003eold rare tube, very warm and rich, noise floor is highest amongst all GE 12AY7 types, good for guitar amps, found stock in 1950's Fender amps at times.\u003c\/p\u003e","brand":"Fuzz Audio","offers":[{"title":"Grey Plate GE 12AY7 \/ NOS","offer_id":40025373147171,"sku":"GEY7N","price":60.0,"currency_code":"USD","in_stock":false},{"title":"Grey Plate GE 12AY7 \/ Tests NOS","offer_id":40025373179939,"sku":"GEY7T","price":50.0,"currency_code":"USD","in_stock":true},{"title":"Box Plate GE 12AY7 \/ NOS","offer_id":40025373212707,"sku":"GEY7NBX","price":60.0,"currency_code":"USD","in_stock":false},{"title":"Box Plate GE 12AY7 \/ Tests NOS","offer_id":40025373245475,"sku":"GEY7TBX","price":50.0,"currency_code":"USD","in_stock":false},{"title":"Black Box Plate GE 12AY7 \/ NOS","offer_id":40025373278243,"sku":"GEY7NBPBX","price":80.0,"currency_code":"USD","in_stock":false},{"title":"Black Box Plate GE 12AY7 \/ Tests NOS","offer_id":40025373311011,"sku":"GEY7TBPBX","price":70.0,"currency_code":"USD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0275\/0699\/9331\/products\/ge-12ay7-grey-plates-nos-tubes-fuzz-audio-grey-plate-ge-12ay7-nos-438990.jpg?v=1715474391"},{"product_id":"fuzz-audio-preamp-tube-collector-pack","title":"Preamp Tube Collector Pack","description":"\u003cp\u003e \u003c\/p\u003e\n\u003ch1 data-mce-fragment=\"1\"\u003e\u003cstrong data-mce-fragment=\"1\"\u003eDiscover the Magic of Vintage Tone with the Fuzz Audio Preamp Tube Collector Pack\u003c\/strong\u003e\u003c\/h1\u003e\n\u003cp data-mce-fragment=\"1\"\u003eUnlock the full potential of your amp with the Fuzz Audio Preamp Tube Collector Pack. This exclusive set is designed for musicians who want to dive deep into the world of vintage tones.\u003c\/p\u003e\n\u003cp data-mce-fragment=\"1\"\u003e\u003cstrong data-mce-fragment=\"1\"\u003eDid You Know?\u003c\/strong\u003e Stevie Ray Vaughn achieved his iconic sound by using a 5751 tube in place of a 12AX7. By simply swapping a preamp tube, you can transform your amp's character and discover tones that resonate uniquely with you.\u003c\/p\u003e\n\u003ch2 data-mce-fragment=\"1\"\u003e\u003cstrong data-mce-fragment=\"1\"\u003eCustomize Your Sound\u003c\/strong\u003e\u003c\/h2\u003e\n\u003cp data-mce-fragment=\"1\"\u003eDoes your amp sound too sharp? Soften it with a 12AY7 or 5751 tube. Need a stable base for your effects pedals, but your Fender Deluxe Reverb is too aggressive? The 12AU7 or 12AT7 will mellow it out.\u003c\/p\u003e\n\u003cp data-mce-fragment=\"1\"\u003eRemember, music is personal. Experimenting with different preamp tubes lets you find the tone that speaks to your soul.\u003c\/p\u003e\n\u003ch2 data-mce-fragment=\"1\"\u003e\u003cstrong data-mce-fragment=\"1\"\u003eWhy Vintage?\u003c\/strong\u003e\u003c\/h2\u003e\n\u003cp data-mce-fragment=\"1\"\u003eVintage tubes are renowned for their superior sound and durability. This collector pack includes hand-tested, collectible tubes from the USA, crafted over 50 years ago. Modern tubes simply don't compare.\u003c\/p\u003e\n\u003ch2 data-mce-fragment=\"1\"\u003e\u003cstrong data-mce-fragment=\"1\"\u003eEach Set Includes One of Each:\u003c\/strong\u003e\u003c\/h2\u003e\n\u003cul data-mce-fragment=\"1\"\u003e\n\u003cli data-mce-fragment=\"1\"\u003eRandom Vintage NOS USA Made 12AX7\u003c\/li\u003e\n\u003cli data-mce-fragment=\"1\"\u003eRandom Vintage NOS USA Made 5751\u003c\/li\u003e\n\u003cli data-mce-fragment=\"1\"\u003eRandom Vintage NOS USA Made 12AT7\u003c\/li\u003e\n\u003cli data-mce-fragment=\"1\"\u003eRandom Vintage NOS USA Made 12AY7\u003c\/li\u003e\n\u003cli data-mce-fragment=\"1\"\u003eRandom Vintage NOS USA Made 12AU7\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2 data-mce-fragment=\"1\"\u003e\u003cstrong data-mce-fragment=\"1\"\u003eWhat's in the Pack?\u003c\/strong\u003e\u003c\/h2\u003e\n\u003cul data-mce-fragment=\"1\"\u003e\n\u003cli data-mce-fragment=\"1\"\u003e\n\u003cstrong data-mce-fragment=\"1\"\u003eValue:\u003c\/strong\u003e Get five premium tubes for the price of three. Individual pricing would total $275, but the Fuzz Audio pack offers exceptional value for exploring your sound.\u003c\/li\u003e\n\u003cli data-mce-fragment=\"1\"\u003e\n\u003cstrong data-mce-fragment=\"1\"\u003eBrands:\u003c\/strong\u003e Expect tubes from renowned brands like GE, RCA, Sylvania, Raytheon, and more.\u003c\/li\u003e\n\u003cli data-mce-fragment=\"1\"\u003e\n\u003cstrong data-mce-fragment=\"1\"\u003eVintage Guarantee:\u003c\/strong\u003e Every tube is from pre-1970, ensuring authentic vintage quality.\u003c\/li\u003e\n\u003cli data-mce-fragment=\"1\"\u003e\n\u003cstrong data-mce-fragment=\"1\"\u003eUnique Logos:\u003c\/strong\u003e Tubes may carry logos from different brands, adding to their unique history. Each tube comes with a card detailing its test scores and origin.\u003c\/li\u003e\n\u003cli data-mce-fragment=\"1\"\u003e\n\u003cstrong data-mce-fragment=\"1\"\u003eBonus Possibilities:\u003c\/strong\u003e There's a chance to get extra black plates in your pack!\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2 data-mce-fragment=\"1\"\u003e\u003cstrong data-mce-fragment=\"1\"\u003eCollector Pack Details\u003c\/strong\u003e\u003c\/h2\u003e\n\u003cul data-mce-fragment=\"1\"\u003e\n\u003cli data-mce-fragment=\"1\"\u003eVintage brands, including GE, RCA, Sylvania, Raytheon, and more.\u003c\/li\u003e\n\u003cli data-mce-fragment=\"1\"\u003eAt least one guaranteed 1950s black plate.\u003c\/li\u003e\n\u003cli data-mce-fragment=\"1\"\u003eLow-noise tubes ideal for various applications.\u003c\/li\u003e\n\u003cli data-mce-fragment=\"1\"\u003eOne-year warranty on all tubes.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp data-mce-fragment=\"1\"\u003eDive into the world of vintage sound with Fuzz Audio's Preamp Tube Collector Pack. Discover your sound. Elevate your music.\u003c\/p\u003e","brand":"Fuzz Audio","offers":[{"title":"With 12AX7","offer_id":40157519773731,"sku":"FZPK12AX7","price":199.0,"currency_code":"USD","in_stock":true},{"title":"Without 12AX7","offer_id":40157519806499,"sku":"FZPKNOAX7","price":160.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0275\/0699\/9331\/files\/preamp-tube-collector-pack-fuzz-audio-172257.heic?v=1715477884"},{"product_id":"rca-5v4g","title":"RCA 5V4G","description":"\u003cmeta charset=\"utf-8\"\u003e\n\u003cp data-sourcepos=\"3:1-3:39\"\u003e\u003cstrong\u003eFuzz Audio's NOS RCA 5V4G Rectifier\u003c\/strong\u003e\u003c\/p\u003e\n\u003cspan\u003e\u003c\/span\u003e\n\u003cp data-sourcepos=\"5:1-5:33\"\u003e\u003cstrong\u003eThe Heartbeat of Vintage Tone\u003c\/strong\u003e\u003c\/p\u003e\n\u003cspan\u003e\u003c\/span\u003e\n\u003cp data-sourcepos=\"7:1-7:346\"\u003e\u003cspan\u003eStep back in time and infuse your amplifier with the authentic sound of a classic era.\u003c\/span\u003e\u003cspan\u003e Introducing Fuzz Audio's New Old Stock (NOS) RCA 5V4G Rectifier tube.\u003c\/span\u003e\u003cspan\u003e This vintage gem is a testament to American craftsmanship and a crucial component in achieving that sought-after,\u003c\/span\u003e\u003cspan\u003e warm,\u003c\/span\u003e\u003cspan\u003e and dynamic tone that defines the golden age of guitar amplification.\u003c\/span\u003e\u003c\/p\u003e\n\u003cspan\u003e\u003c\/span\u003e\n\u003cp data-sourcepos=\"9:1-9:17\"\u003e\u003cstrong\u003eKey Features:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cspan\u003e\u003c\/span\u003e\u003cspan\u003e\u003c\/span\u003e\n\u003cul data-sourcepos=\"11:1-11:29\"\u003e\n\u003cul data-sourcepos=\"11:1-11:29\"\u003e\n\u003cli data-sourcepos=\"11:1-11:29\"\u003e\n\u003cstrong\u003eGenuine RCA Production:\u003c\/strong\u003e\u003cspan\u003e Experience the quality and sonic character that made RCA a legendary name in vacuum tube manufacturing.\u003c\/span\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/ul\u003e\n\u003cspan\u003e\u003c\/span\u003e\n\u003cul data-sourcepos=\"11:1-11:29\"\u003e\n\u003cul data-sourcepos=\"11:1-11:29\"\u003e\n\u003cli data-sourcepos=\"12:1-12:108\"\u003e\n\u003cstrong\u003eNOS Condition:\u003c\/strong\u003e\u003cspan\u003e This tube is in pristine,\u003c\/span\u003e\u003cspan\u003e unused condition,\u003c\/span\u003e\u003cspan\u003e ensuring maximum performance and longevity. Or go \"tests NOS\" to save some money!\u003c\/span\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/ul\u003e\n\u003cspan\u003e\u003c\/span\u003e\n\u003cul data-sourcepos=\"11:1-11:29\"\u003e\n\u003cul data-sourcepos=\"11:1-11:29\"\u003e\n\u003cli data-sourcepos=\"13:1-13:176\"\u003e\n\u003cstrong\u003eEssential for Vintage Amps:\u003c\/strong\u003e\u003cspan\u003e Designed for classic amplifier circuits,\u003c\/span\u003e\u003cspan\u003e the 5V4G delivers the ideal voltage regulation and tonal response for recreating those iconic sounds.\u003c\/span\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/ul\u003e\n\u003cspan\u003e\u003c\/span\u003e\n\u003cul data-sourcepos=\"11:1-11:29\"\u003e\n\u003cul data-sourcepos=\"11:1-11:29\"\u003e\n\u003cli data-sourcepos=\"14:1-15:0\"\u003e\n\u003cstrong\u003eHand-Selected and Tested:\u003c\/strong\u003e\u003cspan\u003e Fuzz Audio meticulously tests each tube to guarantee its quality and performance.\u003c\/span\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/ul\u003e\n\u003cspan\u003e\u003c\/span\u003e\u003cspan\u003e\u003c\/span\u003e\n\u003cp data-sourcepos=\"16:1-16:22\"\u003e\u003cstrong\u003eUpgrade Your Sound\u003c\/strong\u003e\u003c\/p\u003e\n\u003cspan\u003e\u003c\/span\u003e\n\u003cp data-sourcepos=\"18:1-18:115\"\u003e\u003cspan\u003eThe rectifier tube is an often-overlooked component,\u003c\/span\u003e\u003cspan\u003e yet it plays a significant role in your amp's power supply and overall sound.\u003c\/span\u003e\u003cspan\u003e With the NOS RCA 5V4G Rectifier,\u003c\/span\u003e\u003cspan\u003e you'll discover:\u003c\/span\u003e\u003c\/p\u003e\n\u003cspan\u003e\u003c\/span\u003e\u003cspan\u003e\u003c\/span\u003e\n\u003cul data-sourcepos=\"20:1-23:0\"\u003e\n\u003cul data-sourcepos=\"20:1-23:0\"\u003e\n\u003cli data-sourcepos=\"20:1-20:83\"\u003e\n\u003cstrong\u003eEnhanced Dynamics:\u003c\/strong\u003e\u003cspan\u003e Enjoy a more responsive and expressive playing experience.\u003c\/span\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/ul\u003e\n\u003cspan\u003e\u003c\/span\u003e\n\u003cul data-sourcepos=\"20:1-23:0\"\u003e\n\u003cul data-sourcepos=\"20:1-23:0\"\u003e\n\u003cli data-sourcepos=\"21:1-21:107\"\u003e\n\u003cstrong\u003eSmoother, Richer Tone:\u003c\/strong\u003e\u003cspan\u003e Experience a noticeable improvement in harmonic complexity and overall warmth.\u003c\/span\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/ul\u003e\n\u003cspan\u003e\u003c\/span\u003e\n\u003cul data-sourcepos=\"20:1-23:0\"\u003e\n\u003cul data-sourcepos=\"20:1-23:0\"\u003e\n\u003cli data-sourcepos=\"22:1-23:0\"\u003e\n\u003cstrong\u003eIncreased Reliability:\u003c\/strong\u003e\u003cspan\u003e NOS tubes are known for their durability and long lifespan.\u003c\/span\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/ul\u003e\n\u003cspan\u003e\u003c\/span\u003e\u003cspan\u003e\u003c\/span\u003e\n\u003cp data-sourcepos=\"24:1-24:29\"\u003e\u003cstrong\u003eThe Fuzz Audio Guarantee:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cspan\u003e\u003c\/span\u003e\n\u003cp data-sourcepos=\"26:1-26:131\"\u003e\u003cspan\u003eWe stand behind the quality of our NOS tubes.\u003c\/span\u003e\u003cspan\u003e That's why we offer a one year warranty to ensure your satisfaction.\u003c\/span\u003e\u003c\/p\u003e\n\u003cspan\u003e\u003c\/span\u003e\n\u003cp data-sourcepos=\"28:1-28:71\"\u003e\u003cstrong\u003eDon't settle for less. Revitalize your amp with the legendary NOS RCA 5V4G Rectifier from Fuzz Audio!\u003c\/strong\u003e\u003c\/p\u003e\n\u003ch3\u003e\u003cstrong\u003eNeed help deciding what tubes are best for you?\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cp\u003eUse our\u003cspan\u003e \u003c\/span\u003e\u003ca href=\"https:\/\/fuzzaudio.com\/vacuum-tubes-plate-cheat-sheet-fuzz-audio\" target=\"_blank\"\u003eplate cheat sheet\u003c\/a\u003e\u003cspan\u003e \u003c\/span\u003eand\u003cspan\u003e \u003c\/span\u003e\u003ca href=\"https:\/\/fuzzaudio.com\/category\/tube-buyers-guide\" target=\"_blank\"\u003evacuum tube buyers guide\u003c\/a\u003e\u003cspan\u003e \u003c\/span\u003eto determine which tubes are best for you. Likewise, you are welcome to reach out to us directly at\u003cspan\u003e \u003c\/span\u003e\u003ca href=\"mailto:Support@FuzzAudio.com\" target=\"_blank\"\u003eSupport@FuzzAudio.com\u003c\/a\u003e\u003cspan\u003e \u003c\/span\u003eor by using our chat located on our shop page if you have further questions.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eNOS vs. ANOS vs. Test NOS\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eThese designations are strictly used to describe the cosmetic condition of our tubes. All tubes we sell test identically, come with 100% life and are guaranteed to work in your device!\u003c\/p\u003e\n\u003cp\u003eIf you are picky about owning an original box or wanting a specific logo please reach out to us\u003cspan\u003e \u003c\/span\u003e\u003cu\u003ebefore purchasing.\u003c\/u\u003e\u003c\/p\u003e\n\u003col\u003e\n\u003cli\u003e\n\u003cstrong\u003eNOS (New Old Stock) Tubes-\u003cspan\u003e \u003c\/span\u003e\u003c\/strong\u003eare 100% brand new vintage tubes in mint cosmetic condition with show zero signs of use. You should expect a legible logo and clean straight pins. An original box is likely but not guaranteed. \u003c\/li\u003e\n\u003c\/ol\u003e\n\u003col start=\"2\"\u003e\n\u003cli\u003e\n\u003cstrong\u003e\u003c\/strong\u003e\u003cstrong\u003eANOS Tubes-\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eotherwise known as “almost new old stock” tubes are basically new, but may show slight signs of use in cosmetic condition, such as a missing logo or slightly bent pins. An original box is possible but unlikely.\u003cstrong\u003e \u003c\/strong\u003e\n\u003c\/li\u003e\n\u003c\/ol\u003e\n\u003col start=\"3\"\u003e\n\u003cli\u003e\n\u003cstrong\u003eTest NOS Tubes-\u003cspan\u003e \u003c\/span\u003e\u003c\/strong\u003eare used but still operating to specification with 100% life. These tubes are equal in function to NOS valves, yet they cost considerably less because they have cosmetic blemishes. If you plan to disappear your tubes into the back of an amplifier or do not care what the tubes look like, then this is cost effective choice. Blemishes and cosmetic imperfections do not affect tone…\u003c\/li\u003e\n\u003c\/ol\u003e\n\u003cp\u003e\u003cstrong\u003eLogos:\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eVintage tubes have a wide variety of logos printed on them. It is not uncommon to see a Mullard made tube with an RCA or GE logo, or a GE made tube with a Mullard logo. Your tube may come with a logo such are Heath Kit, Baldwin, Fisher, Hammond, Magnavox, Fender, Gibson, Silvertone, etc. but the true manufacturer of that tube will be correct to your order. If you are looking for a specific logo please reach out before purchase.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003e\u003c\/strong\u003e\u003cstrong\u003eOur Standards:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eAll tubes are tested for \u003cstrong\u003emicrophonics \u003c\/strong\u003eand are guaranteed to work in sensitive audio applications\u003c\/li\u003e\n\u003cli\u003eAll tubes sold are guaranteed to have strong (to spec) NOS test scores with 100% life\u003c\/li\u003e\n\u003cli\u003eAll tubes are tested on a calibrated Hickok 539C, Maxi-Matcher, E-Tracer or other industry standard tube analyzers\u003c\/li\u003e\n\u003cli\u003e\u003cstrong\u003eTubes are guaranteed for one year and can be returned within 30 days\u003c\/strong\u003e\u003c\/li\u003e\n\u003cli\u003ePreamp tubes matched by gain and mutual conductance (Gm)\u003c\/li\u003e\n\u003cli\u003ePower tubes matched by mA and Gm\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eDon’t forget to email\u003cspan\u003e \u003c\/span\u003e\u003ca href=\"mailto:Support@fuzzaudio.com\" target=\"_blank\"\u003eSupport@fuzzaudio.com\u003c\/a\u003e\u003cspan\u003e \u003c\/span\u003eor reach out to us via chat if you need help picking out valves for your device.\u003c\/p\u003e\n\u003cspan\u003e\u003c\/span\u003e\n\u003cp data-sourcepos=\"30:1-30:154\"\u003e\u003cbr\u003e\u003c\/p\u003e","brand":"Fuzz Audio","offers":[{"title":"NOS","offer_id":40277016477731,"sku":"","price":50.0,"currency_code":"USD","in_stock":false},{"title":"Tests NOS","offer_id":40277016510499,"sku":"","price":35.0,"currency_code":"USD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0275\/0699\/9331\/files\/RCA5V4GResized.jpg?v=1715467435"}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0275\/0699\/9331\/collections\/RCA_6973_Matched_Pair_1_Vintage_NOS_Vacuum_Tubes_Fuzz_Audio.jpg?v=1751387628","url":"https:\/\/fuzzaudio.shop\/collections\/usa-made-tubes\/tube-sets.oembed","provider":"Fuzz Audio","version":"1.0","type":"link"}