2 layers46.7 × 40.9 mm

CASIO VX4 YM2413 Soundcard v1.1
hwreverse/PokeConSound
Soundcard Designs for Pocket Computers (ポケコン) (Sharp, Casio, TRS80-M100,...)
22 parts7MIT
KiCad boards from 1 GitHub repository tagged “computers”, the most starred first; open any of them in PCBKit.

hwreverse/PokeConSound
Soundcard Designs for Pocket Computers (ポケコン) (Sharp, Casio, TRS80-M100,...)

hwreverse/PokeConSound
Soundcard Designs for Pocket Computers (ポケコン) (Sharp, Casio, TRS80-M100,...)