A dual voltage controlled amplifier from Curtis ElectroMusic Specialities.


Features:
from the original data sheet

  • low cost
  • two independent VCA:s in a single 14-pin DIP
  • simple to use - few external components required
  • exceptionally low control feedthrough without trimming: 10mV max. out of 10 V.P.P. output
  • low noise: -110dB typical
  • no trimming required
  • summing node signal inputs
  • current outputs capable of swinging to withing 1.5V of each supply
  • linear and exponential control
  • control voltages referenced to ground
  • wide supply range: ±3 to ±12 V or +15, -3 to -9 V


    Synthesizers using the chip:
    with the amount used

    Bananna Poly Synth                 12
    Crumar Spirit                      3
    Ensoniq ESQ1                       1
    Ensoniq SQ-80                      1
    Linndrum                           1
    Moog MemoryMoog                    26
    Moog MemoryMoog+                   26
    Oberheim OB-8                      2
    Oberheim OB-SX                     1
    Oberheim OB-Xa                     1
    PPG Wave 2.2 & 2.3                 4
    Rhodes Chroma                      8
    Roland Jupiter-6                   6
    Roland MKS-20                      5
    Roland MKS-80 (to serial #511800)  4
    Sequential Circuits Prophet-600    4
    Sequential Circuits Studio 440     1
    Synton Synrix                      1
    
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