Triplegraph | CopperSound Pedals x Jack White – Digital Polyphonic Octave Pedal | CopperSound Pedals
Boss OC-2 Dual Octave Down Guitar Pedal Schematic Diagram
MOD Kits DIY Introduces the Contortionist II Fuzz Pedal | WorshipGTR
Here's a very cool synthy sounding octave down / up invented by Slacker (the creator of The Echobase). Original t… | Guitar pedals, Diy guitar pedal, Diy guitar amp
simple octave up pedal for bass : r/diypedals
Octave Master
One Octave Foot Pedal Controller Schematic
U-Boat Sub-Octave kit, 33,00 €
Screamer Octave - an octave up pedal made from available parts!