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Sylvania 6SN7GTB | Fuzz Audio | Vintage Vacuum Tubes

The Sylvania 6SN7GTB is one of the most respected dual-triode tubes ever produced in the United States. Built during the golden era of American manufacturing, these tubes were designed for long service life, tight tolerances, and consistent performance in demanding hi-fi, studio, and military applications.

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THE PLATE CHEAT SHEET

Did you know? The type of “plate” in your vacuum tube can determine your amplifier’s tone and performance. Although it may seem like something to ignore, plates can govern things such as quietness, bass & treble range, longevity, and tonal quality...

What are the Best TubeS for MARSHALL Amps?

With vintage Marshall amps, the two most important tonal qualities are the strong mid-range and the high gain. This is in contrast with classic American-style amps (like Fender), which traditionally are heavy in bass and treble. You may want to consider tubes that have the desired tonal characteristics of the classic Marshall sound.

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TONE 101

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Vacuum Tube History

Explore our Vacuum Tube History blog to rediscover the magic of vintage sound and learn why keeping this rich legacy alive matters.

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Purchased Telefunken NOS Ax tubes. It was a excellent experience. I was looking at another tube but after telling them my situation they recommended these and I am so glad I listened. They gave me an excellent price. They know what they are doing. I definitely will be using them again. 6 stars

Darren H.

Top quality vintage NOS/UsedTested vacuum tubes for the professional musician or HIFI enthusiast at a reasonable price point. Their vacuum tubes undergo rigorous Mutual Conductance testing & matching to ensure that they're not weak like some of the misrepresented sets being sold on Ebay..

Andrew W.

Very knowledgeable company, fast shipping, guarantee there tubes and will help you decide on a tube you are looking for. NOS or new

Leland R.

Soon as I turned on the amp with the new GE 12AX7 NOS Long plate...the tone on my Fender Champion 600 just sounded so much warmer and less twangy...glad I made the upgrade.

Sherwin S.

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