Fairfield Circuitry Randy’s Revenge Ring Modulator Pedal


Randys Revenge is a  powerful and versatile ring modulator that transforms anything you play into a whole new world of musical possibilities.

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  • 30 day no quibble returns policy
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Fairfield Circuitry Randy’s Revenge

This powerful and versatile ring modulator transforms anything you play into a whole new world of musical possibilities. Enter Fairfield Circuitry Randys Revenge!

By multiplying two signals, and outputting the sum and difference of all frequencies involved, you create exotic sounds previously unimagined.

You control the all analogue, pure sine wave oscillator with the Hi or Lo toggle and the Frequency control. This creates lush tremolo and vibe effects, rich bell tones, tuned intervals and vintage synthesizer sounds.

Then adjust the low pass filter and the wet and dry mix to fine tune it all as intense or as subtle as you like.

Randy’s Revenge in use

The lower oscillator frequencies create rich tremolo and vibe effects – very slow or chopped up rhythmic flavours.

As the frequency goes up, thick bells, tuned intervals, lo-fi synth-like effects are only the beginning.

Experimenting with the low-pass filter cutoff frequency and the dry and wet mix will yield tones as strange or subtle as desired.

Featuring expanded control voltage capabilities. These allow for interactions beyond the simple stacking of effects, Randy can be used to control and be controlled by other CV capable devices.

The stereo CV is switch-programmable for use with an expression pedal or as a 2-channel CV port.

Both the oscillator and low-pass filter frequency are voltage-controllable. The internal oscillator is also available as an output, turning Randy into a stand-alone voltage-controlled oscillator.


  • CV Jack for Expression Pedal
  • 6 Programmable, Internal Micro-Switches
  • Volume, Mix, Low Pass Filter, Frequency Controls
  • Square/Sine Waveshape, Hi/Lo Frequency Toggles
  • True Bypass
  • Standard 9v DC Operation
  • Handmade in Canada

At its finest, in a considerably small package, powered by your typical 9V power supply, all analogue, hand stamped, pure sine wave oscillator, low-pass filtered with a touch of class and apparently musical.

These are the requirements of warp speed space travel; a regular occurrence when dealing with Randy’s hardware.

You can see an article on how ring modulators work here

Additional information

Weight 0.35 kg
Dimensions 12 × 10 × 5 cm
Analogue or Digital



Black, Silver


85 mA



Pedal Type


Power Connection Type

Centre Negative

Silicon or Germanium





Randy's Revenge

Audio Samples

Fairfield Audio Randys Revenge sound clips


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