Category Archives: final cartridge III

Building a Replica Final Cartridge III

The Commodore 64 was the computer of the 8-bit era, and remains the highest selling computer of all time. In addition to disk and tape drives, it also had a cartridge interface. A popular extension cartridge was the Final Cartridge III, which offered a variety of disk utilities and a GUI. [Greisi] was in possession of a no longer functional cartridge, and decided to reverse engineer the device.

[Greisi] started by desoldering all the ICs and mapping out a schematic for the board. The design centers around common parts for the era, such as a UV-erasable EPROM and some 74-series …read more

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