Here's a very cool synthy sounding octave down / up invented by Slacker (the creator of The Echobase). Original t… | Diy guitar amp, Diy guitar pedal, Guitar pedals
Deeplocal – Reese's Puffs RP-FX
Schematics | General Guitar Gadgets
Vintage Octave Fuzz ... Without the Fear - Premier Guitar
Gus's Octave Up SIck Box / octave tuning and theory
Pezzner | Facebook
MXR M103 Blue Box - ranked #15 in Fuzz Pedals | Equipboard