How to design a basic overdrive pedal circuit - Wampler Pedals
DIY tube distortion pedal | TalkBass.com
The Screamer - Overdrive kit, 23,50 €
A DIY valve overdrive pedal – Goldie – Dave Mac's Window on the World
Tube – TH custom effects
Guitar Stompbox & Effects Projects
While I know we've posted this previously, I found this layout to be one of the more useful ones. Look into our archiv… | Guitar pedals, Boost pedal, Diy guitar amp
StompBoXed - The Guitar Pedal Builders Repository: Valvecaster - Matsumin
DIY "Tube" Distortion - High Voltage Neon Drive Pedal - YouTube