Circuit diagram of the home-made overdrive effect pedal. | Download Scientific Diagram
How to design a basic overdrive pedal circuit - Wampler Pedals
A DIY valve overdrive pedal – Goldie – Dave Mac's Window on the World
VFE Pedals - Here's the schematic for the Dragon Hound parallel overdrive / distortion. Download the full PDF version at vfepedals.com/schematics/dragonhound.pdf | Facebook