SparkFun SparkPunk Sound Kit (Q743228)

The SparkFun SparkPunk Kit is a sound generator made in the spirit of the Atari Punk Console. Rather than simply recreating the Atari Punk, the SparkPunk is a new design that springs from a similar foundation. It starts with a dual 555 timer IC, then adds a second tone source, sub-octaves and a bandpass filter. With all of the knobs and switches, a lot of tonal variations are possible.