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TPCVCO Transistor Pyramid Core Oscillator - 18HP

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Item: N13-2780

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TPCVCO Transistor Pyramid Core Oscillator - 18HP


The TPC VCO is a Transistor Pyramid Core oscillator.

It also features Analog Sample & Hold and two types of Sync - Variable and Hard Reset. The VCO can also be switched into LFO mode for much slower oscillation.

The internal Sample and Hold circuit that uses LF398M IC chip. The circuit uses the internal pulse wave as a clock. So you can use the PW knob to change the clock gate length. The way you use the sample and hold is to patch for example a wave from another external module into jack #17. Now patch from the ‘OUT’ jack #18 into some other vco like the Lunar Modulation Center VCO’s PCV jack. The TPC vco is controlling the speed of the S&H, the external module is being sampled, the Lunar modulation Center VCO is being modulated by the S&H.


  • Pyramid Core
  • Sample & Hold
  • Variable & Hard Reset Sync
  • Large Coarse Tuning Knob
  • FM
  • Multiple Waveform Outputs

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  • Eurorack Module
  • 18HP Width
  • 32mm Depth
  • +12v: 58mA Current Draw
  • -12v: 60mA Current Draw

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