Little-Scale shares this tutorial for building your own ring modulation filter for guitar – cheap, but effective!

This circuit is made up of two main functions – a square wave generator and a switching mechanism. By using the square wave generator to control whether an electronic pathway is open or closed (ie. whether electricity is conducted between two points), a signal from a sound source is switched on and off at a constant, periodic rate.

Step-by-step ringmod

From the pages of MAKE:
Stomp Box Basics – MAKE:15 p.82 Subscribers, read this article now in our digital edition