Tiptop Audio CP909 Analog Clap Drum Module

Tiptop Audio CP909 is the Roland TR-909 clap sound analog generator in eurorack format. This is yet another low-cost analog drum generator from a legendary drum machine in your modular synthesizer, expanding your Tiptop Audio modular drum machine even further. CP909 is an exact reproduction of the original analog circuit and, with the addition of an extra knob, 'trashing' the frequency of the internal noise generator has added greatly to the spectrum of sounds that can be generated — all without compromising the signature sound of the TR-909 clap. The CP909 clap effect is made by a special triple-saw envelope generator that controls the gain of a VCA. The sound source feeding into the VCA is made by a quasi-random logic based noise generator; some might call it 'digital noise,' though this term might be misleading in today's world of microcontrollers and sound samples. What really makes the noise generator is a ring of logic gates — so primitive, so 80s — and that's the sound of the