The CB88 is an accurate replica of the TR808 cowbell sound. The module is entirely discrete analogue circuitry, based as closely as possible on the original.
The sound is made up from 2 square wave oscillators whose pitch can manually be adjusted. To create the cowbell sound though, they are tune close together so they beat.
The CB88 can produce more than just cowbell sounds. By tuning the 2 oscillators to equal pitch a synth sound is produced, which can be tuned to the melodies in your music.
Trigger socket 5-12V
Accent socket 0-12V
3.5mm audio out
6.35mm audio out
Tune 1, Tune 2, Decay, Level