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Compact Digital VCO


The ‘MCO’ is a compact digital oscillator. It features a main ‘morphing’ wavetable output, an additional copy of this output with overlaid variable pulse width segments (ala Alpha Juno style saw wave pwm) and a sub square wave output an octave down to the main output. The waveform and pulse segment width and be both directly and voltage controlled. The pulse segment distribution can also be voltage controlled via the ‘type’ input.

Expect an early 90s slightly crunchy digital type sound (ala Ensoniq, Kawai KX synths) rather than something striving for perfect analog emulation.


  • A lot of sound in 6hp
  • 3 Outputs; wavetable, PWM’d wavetable & sub.
  • 10 morphing waveforms with noise, staple and complex forms
  • Voltage control of frequency, waveshape, pulse width and distribution.
  • Hard sync input.
  • Reverse polarity protection.
  • Skiff friendly.
  • Designed and Made in the UK.

Technical Specifications

Supply: +12V 40mA / -12V 15mA

Size: 6HP

Depth: 32mm (including power header)

Resolution: 16Bit/48Khz with AKM audio codec

Watch & Learn

MCO - Compact Digital VCO

The MCO pairs with the MegaslopePip Slope & O/A/x2. Also consider Beast’s Chalkboard & Tangle Quartet.

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