Commodore PET 8250 FDD

Resources

Wiki
Service Manual
Drive Notes

8250 is a version of 8050 drive equipped with double sided drives. There is also a low profile 8250LP drive.

Component8050 (single sided)8250 (double sided)
DrivesMicropolis 1006-2Micropolis 1006-IV
Analog board8050008 (REV.B)8250025 (REV.A)
Digital board8050004 (REV.C)the same
ROMDOS 2.5DOS 2.7

Internals

Drive Units

Micropolis 1006-IV with two heads. Please compare to 1006-2 in 8050 drive.

Power Supply

This drive had filter capacitor on the AC mains (visible on the first picture). It needs to be removed, because it is likely to blow up.

Analog Board

Digital Board

Reassembly

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