Electro-Harmonix Percolator Drive & Fuzz Pedal

The Electro-Harmonix Percolator is a compact analogue fuzz and drive pedal inspired by the legendary Harmonic Percolator circuit. From touch-sensitive transistor-style drive to spluttering, octave-tinged fuzz, it delivers a huge range of characterful dirt in a simple, pedalboard-friendly box. With true bypass switching, flexible controls and both latching and momentary operation, it is built to be a creative tone tool for the studio and the stage.

At its core, the Percolator uses an asymmetrical clipping design to emphasise even-order harmonics, giving your sound a rich, musical edge that cuts through a mix without becoming harsh. The Harmonics, Bias and Balance controls interact to move you from subtle grit to wild, gated fuzz, while the Drive/Fuzz toggle lets you quickly choose between more restrained overdrive textures and full-on fuzz chaos. Whether you are chasing classic alternative rock tones or experimental noise, the Percolator rewards players who like to explore the edges of their sound.

Beyond its surface controls, the pedal hides an internal trim pot for extra gain and sub-octave enhancement, letting you fine-tune how extreme the effect becomes. The Bias control is particularly powerful, allowing you to dial in velcro-like sputter, glitchy decay and octave-style artefacts that respond dynamically to your picking. This makes the Percolator ideal for players who use their guitar volume and playing touch as part of their sound design.

Practical features round out the package. Mechanical relay true bypass keeps your dry tone intact when the pedal is off, while the footswitch can be used in standard latching mode or as a momentary switch for quick bursts of fuzz. Powered by a 9V battery or optional 9V DC supply and housed in a compact enclosure, the Electro-Harmonix Percolator is a versatile, expressive fuzz and drive that invites experimentation.

Harmonic Percolator-inspired Analogue Circuit

The Percolator is built around a Harmonic Percolator-inspired analogue fuzz design that captures the quirky, musical character of the original while offering modern reliability. Its asymmetrical clipping enhances even-order harmonics, giving chords and single notes a complex, harmonically rich texture that stands out in a band mix.

From Transistor-style Drive to Aggressive Fuzz

With its Drive/Fuzz toggle switch, the Percolator moves effortlessly from lower gain transistor-style drive to saturated, aggressive fuzz. This gives you everything from edgy, amp-like breakup for rhythm work to thick, sustaining fuzz for leads and riffs, all from a single compact pedal.

Bias Control for Gated and Octave-like Textures

The Bias control lets you starve or feed the circuit, unlocking gated, velcro-like fuzz, glitchy decay and octave-style overtones. This makes the pedal highly responsive to your playing dynamics and guitar volume, ideal for experimental tones, stabs, and dramatic swells.

Momentary Footswitch and Internal Trim Pot

The footswitch can operate in standard latching mode or as a momentary switch, perfect for dropping in brief blasts of fuzz without changing your main sound. An internal trim pot provides additional gain and sub-octave enhancement, allowing you to tailor the overall intensity and low-end response to your rig and playing style.

• Harmonic Percolator-inspired Analogue Fuzz - Captures the distinctive character of the classic Harmonic Percolator circuit in a modern, pedalboard-friendly format, delivering harmonically rich drive and fuzz tones that sit beautifully in a mix.
• Drive/Fuzz Toggle for Wide Gain Range - Switch between more restrained transistor-style drive and full-bore fuzz, giving you everything from gritty rhythm crunch to saturated lead tones without needing multiple pedals.
• Expressive Bias and Harmonics Controls - Shape your sound from smooth and sustaining to gated, velcro-like and octave-tinged, with controls that respond dynamically to your picking and guitar volume for highly expressive performance.
• True Bypass with Latching and Momentary Operation - Mechanical relay true bypass preserves your clean tone, while the flexible footswitch function lets you use the Percolator as a standard on/off effect or for momentary bursts of fuzz for creative accents.

General

• Brand: Electro-Harmonix
• Product Type: Effects Pedal
• Pedal Type: Fuzz
• Drive Type: Tone Bender Style
• Circuit Type: Analogue
• Year Released: 2026

Audio

• Channels: 1
• Audio: Mono
• Bypass: True Bypass (Mechanical Relay)

Controls

• Harmonics
• Bias
• Balance
• Drive/Fuzz Toggle Switch

Switching

• Latching Footswitch
• Momentary Footswitch Function

Power

• Power Supply: 9V Battery (Included)
• Optional Power Supply: 9V DC
• Power / Voltage DC: 9V
• Current Draw: 10 mA
• Battery Powered: Yes

Connectivity

• Inputs: 1 x 1/4"
• Outputs: 1 x 1/4"

Dimensions

• Width: 2.75"
• Depth: 4.5"
• Height: 2.1"