1976 Musitronics Mu-Tron III Envelope Filter Auto Wah Effects Pedal

1976 Musitronics Mu-Tron III Envelope Filter Auto Wah Effects Pedal 

This Pedal Is Located At Our IVG Burbank Store

In Very Good Overall Condition (Please See All Photos)

Recently Professionally Serviced, Tested And Fully Functioning 

Power Supply Was Professionally Removed And Replaced With a Battery-Powered System (Original Power Supply Included)

Filter Modes: Offers low-pass, band-pass, and high-pass filter responses, allowing for a wide range of tonal shaping.

Envelope Control: Responds to the player’s attack, producing dynamic, expressive effects without the need for manual modulation.

Sweep Direction: Selectable up or down sweep, providing versatility in tonal movement.

Construction: Built with opto-isolators and a state-variable filter, contributing to its distinctive sound.

Comes As Shown

The Vintage Musitronics Mu-Tron III, released in 1972, is a groundbreaking envelope filter pedal known for its dynamic auto-wah effects. Designed by Mike Beigel, it responds to the player’s touch, creating expressive, vocal-like filter sweeps. With selectable low-pass, band-pass, and high-pass modes, plus up/down sweep control, it became a favorite of legends like Jerry Garcia and Stevie Wonder. Built with opto-isolators and a state-variable filter, it delivers rich, organic tones. Its versatility works across guitar, bass, and keyboards. Highly sought after today, the Mu-Tron III remains iconic for its pioneering role in funk, rock, and experimental music.