The Answers: information about tubes in general, power tube matching and amplifier biasing, and the Perfect Pair numbering system. We also have information about: completing your online order, shipping options, our return policy, our privacy policy, and how to become an associate.
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| Vacuum Tube Basics Answers basic questions about vacuum tubes: what the names mean, when to change them, and more. | Questions about power tube matching? Do you need a matched quad? Clarification on ordering matched types plus info about amplifier bias, the Perfect Pair system, and how we match tubes. | |||||
| The Perfect Pair System All about the Perfect Pair tube numbering system - the most accurate numbering system for bias-free, plug and play operation. | Matched Sections Service Read about our "Matched Sections" service for top performance from your pre-amp. | |||||
| Guitar amp tweak - change the gain factor of your pre-amp Learn about gain factors and how to use different tube types in your guitar amp for tonal experimentation. | Early Fender Tweed Amps Detailed tube info for early Fender Tweed amplifiers, by Eric Barbour. | |||||
| Fender later Blackface and Silverface Amps Detailed tube info for Fender later Blackface and Silverface amplifiers, by Eric Barbour. | Marshall Amplifiers, Pre-1990 Detailed tube info for Pre-1990 Marshall Amplifiers, by Eric Barbour. | |||||
| Guitar Amp Schematics Some classic schematics available for download. | High-end audio Amp builders don't want you to know how well our tubes work in their products. It's no wonder when you compare our tube prices to theirs. | |||||
| How's our service? Let our customers do the answering. | Tone, Tone, Tone An article on tubes written for Wired magazine but never published. |
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