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PCB replacement for the two ROMs of a Commodore 1541 floppy drive
Replacement of both ROMs UB3 (325302-01) and UB4 (901229-03) in a single ROM chip.
Possibility to switsch between 2 ROMs (Rev 0.2) or 4 ROMs (Rev 0.4).
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PCB replacement for the two ROMs of a Commodore 1541 floppy drive