REFERENCE DESIGNS

Open hardware, with the files to prove it.

612 published boards whose schematic and layout source is public — KiCad, EAGLE, Altium and EasyEDA projects you can read, fork and build on. Every entry links to the original repository and names its licence.

Boards indexed

612

With a design page

612

KiCad projects

275

rc2014 ym2149

by electrified

KiCad schematics and gerbers for a YM sound card for the RC2014. See it in action here: https://www.youtube.com/watch?v=-iLwi9FagFE

78 17Custom

KiCad source

Retro computing

RealSIDShield

by atbrask

An Arduino shield that makes it easy to use a MOS Technology 6581/8580 SID chip (the famous C64 sound chip)

51 11No license

EAGLE source

Retro computing

MUS 1099

by gemedetpaps

ISA sound card based on the SAA1099 sound generator

40 4GPL-3.0

KiCad source

Retro computing

zx Tsid

by UzixLS

MOS SID sound card for ZX Spectrum

22 5MIT

Retro computing

DSBClone

by Rolel

A replacement PCB for the SEGA Digital Sound Boardscused on several SEGA arcade games

13 6GPL-3.0

Retro computing

LENINGRAD 2 48k

by Alex-2-Graf

Leningrad-2. Russian ZX Spectrum clone (2025 Revision). Modernized schematic & PCB with onboard RGB2VGA/HDMI converter, AY-3-8910 sound, and expansion bus adapters.

11 4MIT

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Repository topics

Every project listed here belongs to its author and is linked to its original repository. Licences are read from the repository metadata and summarised for convenience — check the licence file in the project itself before you manufacture or redistribute a design. ProtoFlow does not host, mirror or verify these files. Index last rebuilt 2026-09-21.

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