It's a simple idea. Make an oscillator (I used the ones I fixed up for the dronebox project), make an LFO (based on part of the Tremulus Lune and somewhat modified) and have the LFO modulate the volume of the oscillator. And make it in stompbox format.
It can either be an instrument or a pedal somewhere in the middle of the chain. It does absolutelly nothing to the guitar signal that passes through it. It will add pulsating beeps, drones, tones how fast and how slow you want them. It's great for electroacoustic/ambient sets where you need a rythmic bassy tone in the background! Loop it, and all kind of layering possibilities open up! The controls are as follows:
Volume: volume. does not affect passing-through guitar signal.
Smooth: blends between sawtooth and squarewave LFO
Space: space between pulses less or more
Speed: tempo of the LFO. extremelly slow (like 2 BPM) to way too fast (pulses smeared together)
Shape: oscillator shape blends between triangle and square
Freq: frequency of oscillator. used with Range toggle switch will get you anything between 10Hz to >18KHz
Paints are acrylic and the finish is clear epoxy resin. It has a couple impendance and volume problems which I need to fix, but it works okay if you don't use an amp. Here's a brief video with me goofing off on it: