Modular Chaos NAND Parts

Modular Chaos NAND Parts

Modular Chaos NAND Assembly Final

Modular Chaos NAND Assembly Final

Modular Chaos NAND with Panel

Completed Modular Chaos NAND with Panel

Our 4093 Chaos NAND Synth in Eurorack form! The 4093 Chaos NAND Synth is a super-modifiable noise generator that will knock your socks off with its sonic potential: low pulsing drones, random robotic chaos, and high-pitched laser sounds!

A great project to begin your explorations into the world of DIY sound synthesis, the PCB was designed with the beginner in mind. Board-mountable switches, socketed IC, hands-on knobs and switches for tone control, and a detailed silkscreen PCB to help you solder components right the first time.

The Eurorack 4093 Chaos NAND Synth Kit includes all the components that you will need to build it.

  • Power Draw: +/-20mA
  • Use 3 trimpots (one for each CV input) to dial in the amount of control voltage affecting the vactrol
  • 8 HP
  • 1.036″ Deep
  • Comes with power cable, 3mm screws and 2.5mm screws

    Looking for some of the harder-to-find components such as the Vactrols, Potentiometers, and Audio Jacks? You can order them directly from us!



    1. w Griffin says:

      If I understand correctly, it seems you can’t bypass the vactrols on the stock design. Slews in pitch have certain atavistic characteristics that ultimately make it harder to express desired pulse train austerity. I wish very much bypass switches could be implemented. Constant slewing sounds silly.

    2. Christian Meyer says:


      I’m having trouble sourcing 25k trim pots, would 30k or 50k be ok?


    3. Steve Harmon says:

      Hey Christian,

      You could use a larger value trimpot, for sure. It will take more and more minute adjustments for the sweet spot the larger value you go, so I would aim for 30k if possible.


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