Four square wave LFOs with little blinky lights to show you how fast they are going. Endless fun. Just don't stare into them too long or you will hurt your eyes.

This article is very short as the insides of this module are just the same as 001 – 4xSQUARE, only with bigger capacitors. However, I ran into a few problems while making it, which I write about briefly, mainly to do with drilling and measuring out panels – both of which I ballsed up terribly...

– 12HP

http://castlerocktronics.com/modular/articles/CR-003_-_4xLFO.pdf