Heterodyne Peyote Space Explorer
The Peyote version from this Beavis Audio Research lo-fi synth has three independent square oscillators, a complex wave form generator, a white noise circuit and a mixer .
This build has some changes from the original schematic though: I found out that the white noise circuit was mostly silent, so I changed it for a Wind Machine and also added a spare low pass filter straight from Ray Wilson’s Weird Sound Generator.