Bongo Fury

A triple Bong0: three twin-T oscillators, each struck by its TRIG and CV inputs, best by both, with an LED working as a nonlinear resistor in one leg of the twin-T, the lamp on the panel. At some settings they self-oscillate, for rubbery bass sounds. Pads for 5.1 V zeners hold an output to about ±5 V; the maker suggests fitting them on two sections and leaving the third untethered.

Key features

• Three voices, each with TRIG and CV in and OUT
• ENV and FREQ knobs on each
• Each voice's LED on the panel, 5 mm
• 8 HP; Nonlinearcircuits publishes no current draw, depth or assembled price (it sells the DIY PCB and panel), and ModularGrid lists none