as used by Neil Young, Jerry Garcia (Grateful Dead)... A monster of a pedal - a genuine Musitronics Mu-tron...

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as used by Neil Young, Jerry Garcia (Grateful Dead)…

A monster of a pedal – a genuine Musitronics Mu-tron (Mutron) Octave Divider dating from the seventies for sale serviced and in good working order.

From the legendary Musitronics Corporation, this brute was built to withstand everything seventies musicians could throw at it – with a solid aluminium and steel case and chunky rubber control knobs this vintage Made In USA pedal weighs in at over 1.5kg and operates on 240v mains power.

It is in good cosmetic condition (see photo), and is in perfect working order and more than ready to continue growling and howling for the next 30-40 years. There are few scuffs and scratches, as you’d expect from a vintage foot pedal that’s nearly 40 years old – it has some serious mojo and that’s before you even turn it on… Not many of these pedals were made and they are hard to find in the UK/EU.

It sounds huge, fat and quite unlike any other octave pedal we’ve tried: the Dan Armstrong-designed Green Ringer circuit takes it to another level entirely – sounds great on guitar & bass…

 It was originally a US 110v model but has been converted to UK/EU 240v mains power, so no transformer required (unless it’s heading back to the States…).

We have nearly the whole Mu-tron range for sale at present, including a Flanger, Bi-Phase, Mu-tron III, and a bunch of Phasors… Please get in touch if interested or check our other listings.


As an octave divider there are many modern pedals by EBS, Boss, Dunlop, Ampeg and others that have better tracking and up and down octave features. But none can replicate the signature sound that the Mu-tron Octave Divider creates with the built in Green Ringer circuit. The Ringer sounds excellent on bass with heaps of growling and distorted overtones for added dimension to your sound. The Green Ringer circuit was used “so it would produce a fairly reliable octave above as well as an octave below.” The Ringer is a Dan Armstrong circuit that was manufactured by Musitronics in the early 70s along with other Dan Armstrong US Made effects pedals. The Mu-Tron “OD” pedal is so sought after by current day bassists that a cottage industry has sprung up to clone it as a new product and refurbish what units may still exist from the 70s. 


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