Fairfield Circuits Randys Revenge Ring Modulator Pedal

£299.00

Also available on — Andertons, Gear4music, Reverb, Amazon, eBay

Fresh on the menu for 2026 are the Guitar Pedals, freshly added and carefully selected. These New units are available to order online with fast, secure delivery from trusted UK retailers. Read on for full details, specifications, demos, videos, reviews, and the best places to buy the Guitar Pedals today.


Description

Fresh on the menu for 2026 are the Guitar Pedals, freshly added and carefully selected. These New units are available to order online with fast, secure delivery from trusted UK retailers. Read on for full details, specifications, demos, videos, reviews, and the best places to buy the Guitar Pedals today.

Fairfield Curcuits make great sounding, simply designed pedals and the Randys Revenge is a stunning Ring Modulator. 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.

The lower oscillator frequencies create rich trem/vibe effects, excruciatingly slow or chopped up rhythmic flavours. As the frequency goes up, thick bells, tuned intervals, low-fidelity synth-like effects are only the beginning. Experimenting with the low-pass filter cutoff frequency and the dry/wet mix will yield tones as strange or subtle as desired.

Featuring expanded control voltage (CV) capabilities that 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 (VCO).

NOTES ON POWERING

Randy’s Revenge was designed to operate using your typical centre negative, regulated 9-9.6 VDC power supply. The pedal is protected against reversed polarity and overvoltage conditions. Always check your power supply for proper voltage and polarity before connecting. There is no battery connection inside the pedal.

Specifications

TECHNICALS

  • input impedance 1 M
  • output impedance 1 k
  • power supply 9 to 9.6 VDC
  • current draw 85 mA

PHYSICALS

  • true true bypass
  • 1/4” mono input/output jacks
  • 1/4” stereo CV jack
  • 2.1mm DC connector
  • 4.7” x 3.8” enclosure dimensions

Additional information

Weight 0.5 kg

Category

Guitar Pedals

Tags

Expression

Expression pedals allow real-time control over specific parameters on compatible guitar pedals, such as volume, delay time, modulation depth, or filter sweep. Used with an expression input, they let players shape effects dynamically with their foot, adding movement and performance control that cannot be achieved with fixed knob settings.

Filter

A filter pedal shapes your tone by emphasising or cutting specific frequencies, letting you sculpt everything from subtle tonal shifts to bold, sweeping textures. Unlike traditional wah or envelope effects, filters can be static or controlled in different ways, giving you focused control over how bright, dark, sharp, or resonant your sound becomes.

Use a filter to tighten the low end, tame harsh highs, or create synth-like sweeps and rhythmic movement. Whether you’re refining your core tone or pushing into experimental territory, a filter pedal gives you precise control over the flavour of your sound.

New

This is brand new, fresh in, and a UK warranty is included. New Gear always comes from trusted UK music retailers.

Synth

A synth pedal transforms your guitar signal into rich, layered tones that mimic the sounds of a synthesiser. Using pitch tracking and waveform generation, it can produce everything from deep bass lines to shimmering pads and futuristic leads. Synth pedals open up a wide creative range, blending the expressiveness of guitar playing with electronic textures, making them ideal for experimental sounds, ambient music, or adding a modern edge to classic riffs.

used

Used pedals bring character, value, and often a bit of history to your board. Whether it’s a well-loved classic or a recent release looking for its next home, a used pedal offers the same core tone at a more accessible price. Fully tested and described clearly, it’s a chance to grab great gear without paying brand-new money.

Go used to explore different sounds, track down discontinued favourites, or build your setup more affordably. Sometimes a pedal with a few marks on the casing still delivers flawless tone — and might even have a story or two behind it.

Vibe

A vibe pedal delivers that unmistakable swirling, pulsing modulation inspired by classic late-60s tones. It blends elements of chorus and phase into a deep, throbby movement that feels organic and three-dimensional under your fingers. From subtle shimmer to full psychedelic swirl, vibe adds motion without losing the core of your sound.

Use it to bring warmth and texture to clean chords, add movement to sustained leads, or capture that rich, expressive wobble heard on countless vintage recordings. Smooth, hypnotic, and full of character, a vibe pedal turns simple phrases into something far more atmospheric and alive.