Blacet Dark Star Chaos 2000 revB

via this auction

"Blacet Dark Star Chaos 2000 Frac Rack style module for modular synth. Long out of production, this is one from the final run of these modules. Gently used, works as new. Factory built. Comes with power cable and manual.

Great fun module, unique sounds. Here is what the Blacet site has to say about it:

Analog synth module with versatile noise modulator
Voltage controlled clock frequency pseudorandom noise generator
Voltage controlled noise filter
Noise modulated pulse VCO with VC pulse width modulation
Envelope generator with gate, attack, and decay

When the Dark Star first appeared in 1982, the brochure had the following description:

"Need an amazing source of synthesized sounds at an absurd price? Here you go....a noise oriented prepatched minisynthesizer built around a powerful LSI chip.

The Dark Star TM provides a digital noise source with variable clock, plus a noise filter, LFO, VCO, VCA and envelope generator; a whole panel of synthesizer modules in just a tiny 6 x 4 x 3" package...

You can use it to simulate all those surf, wind, rain, cymbal, explosion, spaceships hurtling across the void and warping out type sounds. Careful design and wide range controls give you a real sound exploration tool; don't be fooled by the low price. Try it as a percussion kit addition, a drone voice, even as a modulation source. The Dark Star just doesn't sound like anything else--we guarantee it!"
Unavailable for many years, the Dark Star now makes a swing through our planetary system....

This reissue of the Dark Star uses the same basic circuit and updates the design with expanded control ranges and CV inputs for the Noise Clock, Noise Filter, VCO and PWM. Use it as a standalone sound generator or interface it with a modular system for some truly wild sounds!

With the interest in chaos theory and fractals in the past few years, this unit provides an excellent means to explore the effects of chaotic (noise) modulation. The results cover quite a wide range from the haunting to the apocalyptic...

Specifications

Front Panel Size: 5.25 x 3" W (Mounting holes and screws provided for Paia FracRack)
PCB depth required: 6"
Input/Output Jacks: 3.5 mm
Gate Input Level: 5 V*
CV Range: 0-5V *
VCO Range: 0-6.5 KHz (linear response)***
VCO Waveform: pulse with width modulation
Noise Clock Range: 50 Hz-32 KHz
Attack/Decay Time: up to 12 S
Output Level: 1 V**
Power: +/-12 to +/-15 Vdc @+25/-6 mA

*All inputs will tolerate +/-15 V
**Up to 3 V with resistor change
***Not recommended for accurate keyboard tracking applications"