Tycobrahe Octavia Fuzz Pedal: just finished my first pedal made entirely from scratch. I followed a schematic I found online. Didn't buy a kit this time! It sounds nasty! It took me
Fuzz Central -- Fender Blender
Screamer Octave - an octave up pedal made from available parts!
Thoughts on Dunlop Jimi Hendrix Octavio pedal | The Gear Page
Perf and PCB Effects Layouts: Roger Mayer Octavia
Boss OC-2 Dual Octave Down Guitar Pedal Schematic Diagram
Index of /diy/Schematics/Fuzz and Fuzzy Noisemakers