{"product_id":"rca-6ca4-ez81","title":"RCA 6CA4\/EZ81","description":"\u003ch2 data-section-id=\"13646p9\" data-start=\"0\" data-end=\"37\"\u003eRCA 6CA4 \/ EZ81 Vintage NOS Rectifier Tube\u003c\/h2\u003e\n\u003cp data-start=\"39\" data-end=\"310\"\u003eThe \u003cstrong data-start=\"43\" data-end=\"51\"\u003e6CA4\u003c\/strong\u003e, also known as the \u003cstrong data-start=\"71\" data-end=\"79\"\u003eEZ81\u003c\/strong\u003e, is a vintage 9-pin full-wave rectifier tube used in many classic tube amplifiers, radios, and hi-fi components. Its job is to convert AC voltage into DC voltage for the power supply, helping the circuit run properly and reliably.\u003c\/p\u003e\n\u003cp data-start=\"312\" data-end=\"591\"\u003eThe 6CA4 is smaller than larger octal rectifiers like the 5U4 or GZ34, but it was widely used in compact tube gear where space and current needs were lower. You’ll often find this tube in vintage integrated amps, small hi-fi amplifiers, radios, and European-style tube equipment.\u003c\/p\u003e\n\u003cp data-start=\"593\" data-end=\"819\"\u003eA good vintage 6CA4 is a smart choice for restoration work. It will not change the sound like a preamp or power tube, but a weak or failing rectifier can cause noise, voltage issues, slow startup problems, or poor performance.\u003c\/p\u003e\n\u003ch3 data-section-id=\"g3460r\" data-start=\"821\" data-end=\"836\"\u003eCommon Uses\u003c\/h3\u003e\n\u003cul data-start=\"838\" data-end=\"988\"\u003e\n\u003cli data-section-id=\"12zltof\" data-start=\"838\" data-end=\"866\"\u003eVintage hi-fi amplifiers\u003c\/li\u003e\n\u003cli data-section-id=\"1glflos\" data-start=\"867\" data-end=\"882\"\u003eTube radios\u003c\/li\u003e\n\u003cli data-section-id=\"kditci\" data-start=\"883\" data-end=\"914\"\u003eSmall integrated amplifiers\u003c\/li\u003e\n\u003cli data-section-id=\"19ce0zq\" data-start=\"915\" data-end=\"945\"\u003eVintage preamps and tuners\u003c\/li\u003e\n\u003cli data-section-id=\"1lhu3cp\" data-start=\"946\" data-end=\"988\"\u003eReplacement for 6CA4 \/ EZ81 tube types\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp data-start=\"990\" data-end=\"1077\"\u003eEach tube is tested for proper rectifier function and carefully packed before shipping.\u003c\/p\u003e\n\u003cp data-start=\"1079\" data-end=\"1157\" data-is-last-node=\"\" data-is-only-node=\"\"\u003e\u003cstrong data-start=\"1079\" data-end=\"1157\" data-is-last-node=\"\"\u003eA reliable vintage rectifier for keeping classic tube gear running strong.\u003c\/strong\u003e\u003c\/p\u003e\n\u003ch2 data-section-id=\"13646p9\" data-start=\"0\" data-end=\"37\"\u003eRectifier Tube\u003c\/h2\u003e\n\u003cp data-start=\"39\" data-end=\"310\"\u003eThe \u003cstrong data-start=\"43\" data-end=\"51\"\u003e6CA4\u003c\/strong\u003e, also known as the \u003cstrong data-start=\"71\" data-end=\"79\"\u003eEZ81\u003c\/strong\u003e, is a vintage 9-pin full-wave rectifier tube used in many classic tube amplifiers, radios, and hi-fi components. Its job is to convert AC voltage into DC voltage for the power supply, helping the circuit run properly and reliably.\u003c\/p\u003e\n\u003cp data-start=\"312\" data-end=\"591\"\u003eThe 6CA4 is smaller than larger octal rectifiers like the 5U4 or GZ34, but it was widely used in compact tube gear where space and current needs were lower. You’ll often find this tube in vintage integrated amps, small hi-fi amplifiers, radios, and European-style tube equipment.\u003c\/p\u003e\n\u003cp data-start=\"593\" data-end=\"819\"\u003eA good vintage 6CA4 is a smart choice for restoration work. It will not change the sound like a preamp or power tube, but a weak or failing rectifier can cause noise, voltage issues, slow startup problems, or poor performance.\u003c\/p\u003e\n\u003ch3 data-section-id=\"g3460r\" data-start=\"821\" data-end=\"836\"\u003eCommon Uses\u003c\/h3\u003e\n\u003cul data-start=\"838\" data-end=\"988\"\u003e\n\u003cli data-section-id=\"12zltof\" data-start=\"838\" data-end=\"866\"\u003eVintage hi-fi amplifiers\u003c\/li\u003e\n\u003cli data-section-id=\"1glflos\" data-start=\"867\" data-end=\"882\"\u003eTube radios\u003c\/li\u003e\n\u003cli data-section-id=\"kditci\" data-start=\"883\" data-end=\"914\"\u003eSmall integrated amplifiers\u003c\/li\u003e\n\u003cli data-section-id=\"19ce0zq\" data-start=\"915\" data-end=\"945\"\u003eVintage preamps and tuners\u003c\/li\u003e\n\u003cli data-section-id=\"1lhu3cp\" data-start=\"946\" data-end=\"988\"\u003eReplacement for 6CA4 \/ EZ81 tube types\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp data-start=\"990\" data-end=\"1077\"\u003eEach tube is tested for proper rectifier function and carefully packed before shipping.\u003c\/p\u003e\n\u003cp data-start=\"1079\" data-end=\"1157\" data-is-last-node=\"\" data-is-only-node=\"\"\u003e\u003cstrong data-start=\"1079\" data-end=\"1157\" data-is-last-node=\"\"\u003eA reliable vintage rectifier for keeping classic tube gear running strong.\u003c\/strong\u003e\u003c\/p\u003e","brand":"Fuzz Audio","offers":[{"title":"Default Title","offer_id":42395966504995,"sku":null,"price":50.0,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0275\/0699\/9331\/files\/RCA_6CA4_EZ81_Vintage_NOS_Rectifier_Tube.jpg?v=1778704018","url":"https:\/\/fuzzaudio.shop\/en-ca\/products\/rca-6ca4-ez81","provider":"Fuzz Audio","version":"1.0","type":"link"}