ALM Busy Circuits MCO

MCO: 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
In stock
Ships in 1–2 days
  • Manufacturer's warranty
  • Pre-orders ship 1-2 days after arrival in NZ
  • Free NZ/AU shipping on all orders over NZ$299
  • Free worldwide shipping on all orders over USD$499
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Manufacturer ALM Busy Circuits
Status In stock
Functionality Oscillator VCO
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