Ampelope

Maker	Mountjoy Modular
Type	Four channel envelope generator and quad VCA with a clockable tremolo
Mounting	SMD
Width	12 HP
License	Proprietary (No hardware licence published)
Difficulty	🌋 Fine-pitch SMD

STM32G431 generates four digital envelopes modelled on a Roland System 100 curve, feeding an AS3364 quad linear VCA. Gates are normalled in a cascade so it works well as a dual stereo pair.

Documentation

• Bill of materials (BOM)
• Schematic
• Fabrication files (PCBA-ready)

Links

• Source / files on GitHub
• Maker page

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This is a third-party open-source design, listed here as a build reference. Specs are researched from public sources; check the source repo and store for the current BOM, panel, and revision before ordering parts. Corrections welcome.

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