A PSU for the Commodore C64 and up to two 1541-II floppy disk drives. It is based on a transformer for the 9VAC, which is required in a C64 and a (PCB) external power supply module, which provides the +5V and +12V for the C64 and the 1541-II floppy disk drives. Depending on the used power supply module, one of the 1541-II connectors can be replaced with an Amiga connection, which also requires -12V. This option has not been tested, since I don't have an Amiga. The PSU combi should be strong enough.