• Dual LFO/VCA
   ELECTRONIC MUSIC > Synthesizer Modules > GMS-782B  
  The GMS-782B Quad Voltage Controlled Low Frequency Oscillator/VC Amplifier provides low frequency triangle, sine or square waves for use as modifiers or triggers for complex evolving synth patches. Two functions, commonly used together are combined in each channel to produce a versatile voltage controlled waveform generator. The LFO has a wide range from subsonic to low audio in two ranges and provides a trigger function to reset the oscillator to a known state. The voltage controlled amplifier has a selector switch allowing one of the three oscillator waveforms or an external input to be selected as its input. The output is a function of the front panel level control summed with the voltage control input.

TRIGGER- When a control signal with a rising edge is presented to the Trigger input, the oscillator is reset to 0 Volts output and the waveform starts rising in the positive direction. The trigger input signal should be a 0 to +5 Volt signal. The length of the trigger pulse is not important.

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  Available for pre-order.
  Click the download tab above to download the product manual.  
  Frequency Range - High Range 0.015Hz to 400Hz
  Frequency Range - Low Range 0.0015Hz to 40Hz
  Waveform Voltage Range 10 Volts Peak-to-Peak
  Frequency Control Voltage Standard Exponential 1 Volt per Octave
  Amplitude Control Voltage Standard Linear .5 V per Volt
  Envelope Control Voltage Range 0 - 5 Volts
  Gate Control Voltage Range 0 - 5 Volts (1.8 Volt Threshold)
  Typical Input Impedance 100K Ohms
  Typical Output Impedance 1K Ohms (short circuit protection)
  Module Power +15 Volts 45 mA., -15 Volts 45 mA.
  Module Size Panel height - 8.75 inches (222 mm); Panel width - 2.125 inches (54 mm); Depth (behind panel) 2.1 inches (53 mm)
  Note: Preliminary specifications, subject to change without notice.


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  • Brands Grove Audio
  • Product Code: GMS-782B
  • Availability: Out Of Stock
  • $249.00