Build Your Own Effect Pedals - Rat (Part 1) Schematic - YouTube
GEO's Effects Schematics
Let's Build a Simple Pedal - A Guitar Boost - Barbarach BC
Schematics | General Guitar Gadgets
VFE Pedals - Here's the schematic for the Fuzz Duo germanium-silicon fuzz. Download the full PDF version at vfepedals.com/schematics/fuzzduo.pdf | Facebook