Drone Machine
I've been messing around with minimalism - via this Drone Machine - Here I'm just twiddling the controls a bit - listen for the harmonics....
Inside the case is 4 CMOS 40106 oscillators, Psuedo Ring-Mod by 4011 CMOS, Oscillator Synch, 2 low pass filters controlled by a vactrol and LFO - and some other stuff :) Mostly it's just low frequency oscillators beating in unison. I Love it.
Through a good subwoofer you really feel it....