This page has a lot of guitar amplifier and distortion pedal schematics on it. A lot! Use it as a reference. It’s all laid out in a very large, 1-page table. I suggest the searching by manufacturer to get to the right part of the page.
Audio
Peavey Ultra & Ultra Plus
The Peavey Ultra was first made in the early 90’s. The updated version, the Ultra Plus was made from 1995 – 2001. In-depth review of the amp with pictures Additional reviews that are shorter but give alternating opinions Pictures of the inside of a Peavey Ultra Plus (Tubes & PCB) Download the Peavey Ultra Plus … Read more
Peavey Manual Archive
Peavey has archived their hundreds of product manuals as PDFs on their website.
Basic Tube Amps: Class A vs AB
Basic Tube Amps: What is a Class A tube amp and how does it differ from a Class AB? Randall Smith, founder of Mesa Engineering explains the key differences plus a lot more about the basic operations of tube amps. A must read for anyone wanting to know how the various classes work.