Parallel Universe. Built by Bryan Tabuteau & Franky Yale.
Controls top to bottom :
Voltage Starve Switch (reduces voltage from battery to circuit)
Voltage Starve knob
Frequency/Oscillator Switch (engages the feedback loop and knob to control oscillation frequency)
LM-386 Based Gain Driven Fuzz/Oscillator.
Early version of the circuit from the Experimentalists Anonymous archive.
Core circuit design by Colin Raffel