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| Matching and other tube info Vacuum Tube Basics Questions about power tube matching? Do you need a matched quad? The Perfect Pair System Matched Sections Service Blue Glow in Tubes, Tube Getters, and other Tube Info How to Install a Power Tube with a Broken Guide Key Different types of amp bias | | Guitar Amp Info Guitar amp tweak - change the gain factor of your pre-amp Early Fender Tweed Tube Amps Fender Brown, Blonde, Blackface and Silverface Tube Amps Marshall Amplifiers, Pre-1990 Guitar Amp Schematics |
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| Tone, Tone, Tone An article on tubes written for Wired magazine but never published. | | X-ray vision for amps: what tubes are other people using? |
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| Newsletter Archive July 2010 June 2010 May 2010 April 2010 March 2010 February 2010 January 2010 December 2009 November 2009 October 2009 September 2009 | | 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. |
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 Top of Page The easiest way to buy vacuum tubes. |