The upper part of the .SHN contains an analog noise generator with two timbres: white noise and pink noise.
The bottom section is a sample & hold circuit. The white noise is normalized to the control input of the S&H, this normalization can be deactivated by inserting an external sample signal into the control jack.
The trigger input reacts withing 20 microseconds and accepts frequencies up to 7kHz
Noise generator: outputs for pink noise and white noise
Sample and Hold: control input, trigger input, S&H output
3U Eurorack module, 4HP wide, 61mm deep