Commodore 1541C Disk Drive

5.25" diskette drive for the Commodore 64.

Cover removed.

Close-up of electronics. Top left are 2 rectifier bridges, to the right of them are 2 voltage regulators (TO-3 package) mounted on a heatsink. Left one is an L7805C and right one an L7812C. Most IC's are made by MOS, a company owned by commodore. The 6502AD is the microprocessor and above and below it sits a couple of 6522 "Peripheral Interface Adapters" (PIA). MOS prefered to call them VIA's (Versitile Interface Adapters) because they also contain timers and a shift register (see wikipedia article MOS Technology 6522 for more details).

Board removed to reveal the big trafo.

Related Links:
Wikipedia - Peripheral Interface Adapter
Wikipedia - MOS Technology
Wikipedia - Commodore 1541

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Last Updated: 2006-02-03