Macro Oscillator in 5U

[Synth DIY] Macro Oscillator for 5U modular synthesizer

This is the first custom module I ever did, besides a power inlet module.

It’s based on an famous Eurorack module invented by mastermind Émilie Gillet.

MU Version


Technical Data

  • +15V @65mA (approx).
  • -15V @5mA (approx).
  • MOTM and/or MU power connector


DIY Info

Build Guide MJK Macro Oscillator MU v1.2a

BOM Macro Oscillator MU v1.2a (CC-by-SA-3.0 license)

KiCAD Sources can be downloaded here (CC-by-SA-3.0 license)

Everything else (firmware, etc) can be found here: