Pipes Harmonic Generator

Pipes is a Eurorack module that fits into a 3U x 14HP slot. It tracks an input signal from which it creates 8 harmonics. These harmonics are in the standard sequence of 1f, 2f, 3f… 8f. The amplitude of each harmonic is controlled via the 8 CV inputs. The CV inputs are scaled to work with voltages in the 0-10V range.

The 8 harmonic signals are summed and fed to the Analog Out jack. The level of this signal is controlled by a potentiometer on the front panel.

There are also 8 clock signals at the frequency of the harmonic signals that are fed to jacks on the front panel. These will be useful wherever a clock multiplier is needed.

Used in conjunction with The Bonkulator, Pipes allows sophisticated sculpting of sound via additive synthesis in a simple and powerful format.


  • Harmonic Outputs
    • Full Scale: 10.0Vpk-pk
    • Frequency Range: 20Hz – 20Khz
    • Waveform: 10-Step Sine Approximation
    • Sum (VCO Out): 4th order Butterworth, 20KHz cutoff
  • Clock Outputs
    • Level: +5V
    • Frequency Range: Up to 160KHz at 8f output
    • Waveform: Square Wave
  • Input Signal (CLK In)
    • Frequency Range: 20Hz – 20Khz
    • Minimum Input Level: .1Vpk-pk square wave
    • Minimum Input Level: .2Vpk-pk sinewave
  • VCAs
    • Turn on time (from 0% to 63% of full scale): 40ms typ.
    • Turn on time (from 0% to >99% of full scale): 300ms typ.
    • Turn off time(from 100% to 37% of full scale): 50ms typ.
    • Turn off time(from 100% to <1% of full scale): 400ms typ.
    • Input Range: 0-10V


  • Additive Synthesis
  • Clock Multiplier

Buy Now

Price: $299

Buy the Kit

Price: $40

Buy the Partially Assembled Kit (All SMD components installed)

Price: $149

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