1978 Musitronics Mu-Tron III Envelope Filter Vintage Auto Wah Effects Pedal – w/ Original PS-1 Power Supply Unit

1978 Musitronics Mu-Tron III Envelope Filter Vintage Auto Wah Effects Pedal – w/ Original PS-1 Power Supply Unit

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– For your consideration is this vintage 1978 Mu-Tron III envelope filter effects pedal by Musitronics.
– This very good example, serial number 21925, is in perfect working order and included the original corresponding PS-1 power supply unit, serial number 10735.
– Aside from non-original orange paint applied to the bottom of the both units, this example is in 100% all original condition.
– It works perfectly and sounds fantastic.
– From the original ’70s Mu-Tron advertisement “New, sophisticated, versatile… utilizing the latest in music synthesis techniques. Small enough to be a ‘mini-synthesizer’. Mu-tron III translates the envelope or ‘volume picture’ of every note automatically… into an easily-controlled, articulated, vowel-like sound – as fast or slow as you play. Use Mu-tron III to create a variety of synthesizer sounds through most electrified instruments – guitar, keyboards, drums, flute, saxophone, brasses, bass, mandolin… even microphone. The sharper your attack and the more percussive your instrument, the wilder your sounds. Mu-tron III can be used with an octave divider or other devices – or in pairs for cascading effects. Besides providing inverted vowel trajectory (‘staccato snap’), Mu-tron III also functions as an automatic ‘wah’ pedal.”

Controls:

  • Mode (LP/BP/LP) selects the type of filter: Lowpass, Bandpass, Highpass
  • Peak Controls volume of the cutoff frequency
  • Gain adjusts the filter’s sensitivity to the signal of your instrument
  • Range (Low/High) selects the frequency range covered by the filter envelope
  • Down/Up selects the direction of the filter sweep: down or upwards
  • Power (Off/On) switches the power on or off

Specifications:

  • Gain: variable from 0.1 to 40, when driven from a low impedance source
  • Input Impedance: 1 megohm at lowest setting of GAIN control, variable to 3.3K ohms at maximum gain setting
  • Output Impedance: 600 ohms
  • Minimum Input Signal For Full Mu-Tron Effect: 1.5 mV from 600 ohm source
  • Maximum Undistorted Output Signal: 3.6 volts RMS
  • Power Supply:  ±9 Volts from 2 NEDA 1604 batteries or Musitronics Model PS-1 Battery Eliminator
  • Dimensions: 8¾” l.  X  5″ w.  X  3⅛” h.
  • Weight: 3¼ pounds (without batteries)

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