Guitar Amp Info

Find info and schematics for popular Fender and Marshall guitar tube amps. As well learn about preamp tube gain tweaking and other upgrades and options.

Preamp Tube Gain Factor
Early Fender Tweed Amps
Fender Brown, Blonde, Blackface
and Silverface Tube Amps
Marshall Amplifiers, Pre-1990
Guitar Amp Schematics