Interstellar Radio

Schlappi Engineering
Simulates the process of modulating and demodulating a signal for radio transmission - Perfect for use as chaotic noise source, (non tracking) oscillator, ring mod, or for an extreme distortion effect!


  • Voltage controlled aliasing, distortion, and frequency modulation effects

  • Two wide ranging voltage controlled square wave oscillators with individual outputs.

  • Controls:

  • CARRIER oscillator converts input into high frequency pulse train

  • DEMODULATOR oscillator inside control loop brings sound back to audio range

  • CV applies external voltage control to oscillators or uses input signal as audio rate FM

  • Internal oscillators can be replaced with external modulation sources

  • TYPE selects demodulation loop type (changes timbre and response)

  • ERROR output with threshold control

  • TONE control for filtering out the harshest of frequencies

  • All analog design


+12V 40mA
-12V 30mA