RND Module Now Available!

AVR Programming Interface now available!
January 24, 2017
Ribbon Controller available!
February 17, 2017


Introducing the Synthrotek RND! It’s like math.random() for modular gear!

This handy module is a feature rich random voltage generator that is shallow and super powerful. It outputs random voltages (similar to a sample and hold) in time with either its internal clock, or with an external clock you can patch in. An external clock will bypass the internal clock, and the CV jack over the clock, so your random voltages will always be in sync with whatever you patch in. With CV control over both the clock speed and the range of your output voltage, you could create anything from a wildly fluctuating blur of notes all the way to a slow, lilting tune. The RND can also be used as a clock source with it’s clock out jack.


  • Clock Speeds:
    • Slow Range: 0.5Hz to 10Hz
    • Medium Range: 2Hz to 40Hz
    • Fast Range: 16Hz to 320Hz
  • Linear CV control over clock speed and range
  • Over and Under voltage protection.
  • CV inputs take 0 to +5v.
  • Output voltage ranges from 0v to +5v
  • 4HP
  • Depth: 40.3mm (1.58in)
  • Current Draw:
    • 16mA @ +12v
    • 0mA @ -12v
    • 0mA @ +5v

Leave a Reply

Your email address will not be published. Required fields are marked *