Mu-Tron™: Mike Beigel's personal collection now available to the public!



Mike Beigel has pulled his personal collection of vintage Mu-Tron out of hiding and made it available to the public. Whether you're a museum who'd like to feature the collection for an exhibit, or a studio looking to produce the original sound of the Mu-Tron as calibrated by the inventor, this rare opportunity to revisit the dawn of analog synthesizers should not be overlooked. Please see below for details on the full collection.

The collection features one unit each of every product manufactured by Musitronics, plus a number of pre-producton prototypes and one-of-a-kind lab specimens.
Visit Mu-Tron.org for more information regarding the original Mu-Tron™!

We still have some remaining units for sale: Click to View

   Mike Beigel: The Inventor's Collection    ( return / contact )

Now available for display or studio rental. For more details:
Contact / E-Mail : Mike Beigel ( info@mu-tron.org )


{short description of image} item : Mu-Tron™-III
description : The patented automatic wah device developed in 1972. Stevie Wonder's endorsement brought the product to national attention.

{short description of image} item : Mu-Tron™ Bi-Phase
description : A dual phase shifter that could be operated in parallel or in series and in stereo or mono. An optional C-100 photoelectric foot controller was also available, which allowed players to manually control either sweep or the rate of the effect.

{short description of image} item : Mu-Tron™ Phasor II
description : Electro-optical phase control: uses same "photo-mod" circuit as Bi-Phase, with rate depth and feedback controls.

{short description of image} item : Mu-Tron™ Phasor
description : Mu-Tron™'s original phasor using transconductance amps. Rate and depth controls.

{short description of image} item : Mu-Tron™ Octave Divider
description : Using the guitar signal as the source material for the octave, it made the octave sound like a guitar. In addition, the Green Ringer circuit was used so it would produce a fairly reliable octave above as well as an octave below.

{short description of image} item : Mu-Tron™ C-100 Pedal
description : Control pedal.

{short description of image} item : Mu-Tron™ Flanger
description : A bucket brigade flanger with extensive pedal control of music parameters.

{short description of image} item : Mu-Tron™ Vol-Wah Pedal
description : Using the robust Mu-Tron pedal design, the product provided volume and wah pedal functions.

{short description of image} item : Mu-Tron™ Micro V
description : A budget version of the Mu-Tron III. It used transconductive amplifiers instead of photomods.

{short description of image} item : Mu-Tron™ PS-1
description : Power Supply

{short description of image} item : Mu-Tron Yellow Thumper
description : Manufactured by Musitronics Corp between 1976-78, and some by Beigel Sound Lab from 1980-84.

{short description of image} item : Mu-Tron Orange Breeze
description : Manufactured by Musitronics Corp between 1976-78, and some by Beigel Sound Lab from 1980-84.

{short description of image} item : Mu-Tron Purple Peaker
description : Manufactured by Musitronics Corp between 1976-78, and some by Beigel Sound Lab from 1980-84.

{short description of image} item : Mu-Tron Blue Clipper
description : Manufactured by Musitronics Corp between 1976-78, and some by Beigel Sound Lab from 1980-84.

{short description of image} item : Beigel Sound Lab, rackmount envelope controlled filter
description : Mike made 50 of these 1979 - 80.
Visit the Beigel Sound Lab website!

   Mu-Tron Unreleased Units
{short description of image} item : Mu-Tron Phase Synthesizer
description : Prototype, approx. 1973. this was actually a "flanger" using the earliest 32-stage "bucket-brigade" chip. This unit had controls for every parameter we could think of. It was used by Larry Coryell on a piece in the "Eleventh House" album and in live performance.

{short description of image} item : Mu-Tron Phase II
description : This was the prototype version that later was manufactured as the "Mu-Tron Bi-Phase" . This version had some extra features which were deleted on the production Bi-Phase. Two prototypes were made, and one was given to Mick Jagger at a Rolling Stones rehearsal at an upstate NY air hangar, mid-70's.

{short description of image} item : Prototype "Envelope Follower"
description : A sophisticated "Envelope" control voltage for voltage-controlled effects (but no sound output). 1978 Never manufactured.

   Mu-Tron Prototype Units
{short description of image} item : Mu-Tron VII Prototype
description : Advanced guitar signal processor 1978, never manufactured.

{short description of image} item : Prototype Mu-Tron Flanger Prototype
description : A flanger in an Octave Divider package 1977-78. Flanger was manufactured in 1978 as a pedal-controlled unit, not this package style.

{short description of image} item : Mu-Tron III from Mexico
description : An authorized reproduction of the Mu-Tron III made in Mexico.

{short description of image} item : Mu-Tron Phasor Prototype
description : First prototype of Mu-Tron Phasor with transconductance amplifier processing, later manufactured as "Mu-Tron Phasor".

{short description of image} item : Mu-Tron Vol-Wah Pedal Prototype
description : In lab prototype created before the mainstream production models of 1977.

{short description of image} item : Mu-Tron Vol-Wah Pedal Prototype
description : In lab prototype created before the mainstream production models of 1977.

{short description of image} item : Mu-Tron Vol-Wah Pedal Prototype
description : In lab prototype created before the mainstream production models of 1977.

{short description of image} item : Mu-Tron Vol-Wah Pedal Prototype
description : In lab prototype created before the mainstream production models of 1977.

{short description of image} item : Dan Armstrong Purple Peaker
description : Made by Dan Armstrong and George Merriman in England before 1975

{short description of image} item : Dan Armstrong Green Ringer
description : Made by Dan Armstrong and George Merriman in England before 1975

{short description of image} item : Dan Armstrong Red Ringer
description : Made by Dan Armstrong and George Merriman in England before 1975

{short description of image} item : Dan Armstrong Blue Clipper
description : Made by Dan Armstrong and George Merriman in England before 1975

In addtion, we have substantial documentation about the company,
it's products, and the prototypes available for limited release to qualified journalists who want to write about the company's history and products.

Intended for museum or studio use, rental or display, and/or demonstration.

The collection is currently not for sale.


Copyright 2007 Mike Beigel. All rights reserved.
info@mu-tron.org