Spectralist

Maker	Mountjoy Modular
Type	Additive oscillator with up to 300 harmonics split across odd and even outputs
Mounting	SMD
Width	12 HP
License	Proprietary (No hardware licence published)
Difficulty	🌋 Fine-pitch SMD

STM32H723 at 400MHz feeding a PCM5100A DAC. Spread and warp controls space or bunch the harmonics, and a filter section works as either a variable slope low pass or a comb. A ring of LEDs shows the harmonic spread.

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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