Commodore C64

Configuration

• Built: End of 1984 in England
• Mainboard: Rev 250425
• CPU: 6510 (date code 3684)
• SID: 6581 (date code 3884)
• VIC: (unknown, covered by heatsink)
• RAM: 64KB
• “Breadbin” case
• Modification: Reset button, two Kernel ROM images (selectable by switch)

Trivia

• Came with a 1541 floppy drive and an “elephant foot” PSU.
• System was already partially recapped, and the 7812 regulator has a heatsink.
• Has a reset button on the right side.
• Has a ROM selector switch on the back. It switches between the standard C64 BASIC and “C64 Improved by EXOS V3” BASIC.
• The floppy drive was modified by the previous owner. It has a blue LED and an USB connector.

Known Issues

• Many screws were missing or replaced with screws of the wrong type. Some screw holes are broken out and need to be restaured (2x case, 3x PCB, 1x Keyboard).
• The “Pound” key is not responding.
• When running the diagnostics, the SID “noise” channels are inaudible.
• Position of reset button might block some joystick connectors.

History

• 2022-06-19: Stored for later refurbishment
• 2022-04-04: Date of purchase