![Here's a very cool synthy sounding octave down / up invented by Slacker (the creator of The Echobase). Origi… | Diy guitar amp, Diy guitar pedal, Electronics basics Here's a very cool synthy sounding octave down / up invented by Slacker (the creator of The Echobase). Origi… | Diy guitar amp, Diy guitar pedal, Electronics basics](https://i.pinimg.com/originals/3c/c4/dd/3cc4ddf35dbf3e537ab787503442ecad.gif)
Here's a very cool synthy sounding octave down / up invented by Slacker (the creator of The Echobase). Origi… | Diy guitar amp, Diy guitar pedal, Electronics basics
![File:Dan Armstrong Green Ringer circuit - an octave-up effect with a ring-modulator touch to it - just finished building (2006-03-05 22.51.45 by germanium).jpg - Wikimedia Commons File:Dan Armstrong Green Ringer circuit - an octave-up effect with a ring-modulator touch to it - just finished building (2006-03-05 22.51.45 by germanium).jpg - Wikimedia Commons](https://upload.wikimedia.org/wikipedia/commons/9/99/Dan_Armstrong_Green_Ringer_circuit_-_an_octave-up_effect_with_a_ring-modulator_touch_to_it_-_just_finished_building_%282006-03-05_22.51.45_by_germanium%29.jpg)
File:Dan Armstrong Green Ringer circuit - an octave-up effect with a ring-modulator touch to it - just finished building (2006-03-05 22.51.45 by germanium).jpg - Wikimedia Commons
![Simple Octave UP: Guitar effects pedals schematics | Guitar gadgets, Guitar effects, Diy guitar pedal Simple Octave UP: Guitar effects pedals schematics | Guitar gadgets, Guitar effects, Diy guitar pedal](https://i.pinimg.com/originals/ee/73/87/ee7387f58ea69bee2a4e5b98ec0cda53.jpg)