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From the Blacet website:

Noise and Uncertainty Generator

• Analog White Noise
• Digital Noise with VC Level and Width (Window Comparator)
• BP or LP Filter
• Noise Mixer
• Sample Hold Clock
• External S/H Clock Input
• Built in Digital S/H & Quantizer
• Separate White, Digital, S/H, and Quantized Outputs
• The Level pot and/or the CV jack sets the comparator signal level. Noise is clipped above this level.
• The Width pot and/or the CV jack sets the signal width or “window” where noise is output.
• In practice, these controls are best experimented with to produce the best noise character for your application. Almost any noise frequency from near white to occasional clicks and pops can be realized.
• Frequency Pot, LP/BP Switch: The internal 12 dB filter’s frequency is controlled by the pot. The switch selects a low pass or band pass response.
• Mix Pot, Filtered Output: The Mix pot allows mixing white and digital noise. This mix is sent into the filter, and the filter output is sent to the Filtered Out.
• S/H Pot, External Clock Input: The S/H rate is normally clocked by the internal clock. An external clock can also be used. Plugging in an external clock will bypass the internal one.
• White Noise Output: white noise
• Digital Noise Output: digital noise
• Stepped Output: Stepped voltages derived from the filtered noise mix
• Quantized Output: Stepped voltages derived from the filtered noise mix, quantized to 1V/oct steps

Download Blacet’s ID BASIC MANUAL.

Modifications:

This module fits neatly into a 1U MOTM style Front Panel Express panel with the board mounted directly by the pot bushings. The CV inputs for internal clock and filter frequency were omitted because of panel space. I made some capacitor substitutions and replaced the polyswitchs on the power inputs with ferrite beads. The panel knobs are ALCO PKG50B1/4.