Simple CV Quantizer PCB

This circuit takes a continuously variable DC voltage and outputs only voltages related to each other musically, using the 1v/octave standard.

This is a PCB only (including programmed microcontroller) suitable for multiple formats.

Availability: In stock




The musical mode which the voltage is quantized to is selected by the position of the mode select potentiometer. There are two banks of musical modes available on each chip. When pin 4 of IC1 is connected to +5v the "standard" bank is selected, when connected to ground, the "octave" bank is selected.



  • Bypass - Inputted voltage is outputted
  • Major - Root, 2nd, 3rd, 4th, 5th, 6th, 7th
  • Minor - Root, 2nd, flat 3rd, 4th, 5th, flat 6th, flat 7th
  • Major Pentatonic - Root, 2nd, 3rd, 5th, 6th
  • Minor Pentatonic - Root, flat 3rd, 4th, 5th, flat 7th
  • Blues Scale Root, flat 3rd, 4th, flat 5th, 5th, flat 7th
  • Whole Tone - Root, 2nd, 3rd, flat 5th, flat 6th, flat 7th
  • Chromatic - All 12 notes



  • Bypass - Inputted voltage is outputted
  • Octave - Root
  • Octave and Fifth - Root, 5th
  • Octave and Flat Fifth - Root, flat 5th
  • Major Arppegio - Root, 3rd, 5th
  • Minor Arppegio - Root, flat 3rd, 5th
  • Dominant Arppegio - Root, 3rd, 5th, flat 7th
  • Chromatic

Specs & Downloads

Specs & Downloads

Manufacturer Barton
Depth No
+12V No
-12V No
+5V No
Additional Resources Build Guide


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