Skip to content
This is a replacement PSU (230VAC input) for the Commodore C64.
Branch: master
Clone or download
Fetching latest commit…
Cannot retrieve the latest commit at this time.
Type Name Latest commit message Commit time
Failed to load latest commit information.
C64 Replacement PSU (230V)/Rev. 2


This is a replacement PSU for the Commodore C64. The original PSUs from the 1980s and early 1990s tend to die and damage the connected C64, so it is recommended to get a new power supply for the C64. This design is straight forward: a transformer, bridge rectifier and DC/DC converter for the 5VDC and a separat winding for the 9VAC. Nothing fancy. It was paid attention to use parts which are easily available (in Germany). Everything, except the 4 conductor cable for the output voltage are sourced from A further goal was a decent documentation.

C64 replacement PSU (outside)

C64 replacement PSU (inside)

You can’t perform that action at this time.