Moog modular synthesizer

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The first prototype Moog Modular Synthesizer, designed by Bob Moog was built in 1964 and by 1967 was a commercially available product line. These consisted of Moog 900-series modules housed in walnut cabinets. The 900-series modules use S-Trigger, which drops a +5V level to 0V when a trigger is sent, and not the more widely used Gate which raise 0V to a higher voltage.[1][2][3]


  1. ^ Vintage Synth Explorer, Moog Modular Synthesizers
  2. ^ Wikipedia:CV/gate
  3. ^ Gates and Triggers, Mystery Solved

External links