Closeup of the read-write head, showing white ceramic and black iron core for the coils.
https://assets.chaos.social/media_attachments/files/112/462/973/463/434/648/original/e0c0669ba7812605.jpeg
But I won't give up quite yet. If the motors work, and if the head is good (it measures fine), maybe we can restore this thing and/or use the mechanism on the other drive. This will require partial disassembly of the mechanism and lots of scrubbing, oiling and lubrication.
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