Mu-tron III with Musitronics PS-1 Power Supply
https://mu-tron.com/vintage-musitronics/mu-tron-iii/
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)