Diode Chaos


analog chaotic low frequency voltage generator

Available on backorder

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Analog chaotic low frequency voltage generator

Diode Chaos is a 3hp analog chaotic low frequency voltage generator. It is a unique module because it has never existed as an electronic music instrument until now. The module is based on a circuit from a paper called “A simple chaotic circuit with a light-emitting diode” by Volos, Wang, Jafari, and Kapitaniak.

Diode Chaos produces 3 phases of interrelated morphing voltages including a chaotic trigger out. The range is around 30 seconds a cycle up to audio rate. The frequency is controlled by the RATE knob. Each output exhibits different behavior at different rate settings. X, Y, and Z outs like to stay in the 4Vpp range although at different RATE settings the outs can reach 10Vpp. The TRIG out chaotically releases 0-10v triggers although sometimes it will spit out smaller voltage peaks.

LED soldermask windows provide constant display of positive and negative voltage crossings.

Differences between chaos and random; some quoted and summarized material from Ian Fritz’s site:

-Chaos is “highly irregular, but still contained within a finite region (the “strange attractor”)
-Chaos occurs in 3 dimensions
-Chaos needs a non-linear element (with Diode Chaos the nonlinear element is a red LED, and the chaos is directly visible and usable at the TRIG out)

Width: 3hp
Panel material: PCB Panel
Reverse power protected
Current consumption: +12v: 10mA, -12v: 10mA
Depth: 45mm
Ships with M3 black nylon screws
Build difficulty: Beginner / Intermediate
Expandable: No

3 HP
45 mm deep
Current Draw
10 mA +12V
10 mA -12V
0 mA 5V





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Diode Chaos


Available on backorder