2 layers200 × 96 mm

Touchtone555
DarcyJProjects/touchtone555
An open-source DIY, NE555-based analogue synthesizer - play notes with a stylus
73 parts33
Printed circuit boards designed in KiCad and published on GitHub, each with its parts, layers and size, its README and its files; open any of them in PCBKit.

DarcyJProjects/touchtone555
An open-source DIY, NE555-based analogue synthesizer - play notes with a stylus