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IMSAI fix pt3

Just tried booting CP/M again. Unfortunately now I can't boot from one of the previously working floppies, which leaves me down to one working floppy. and even that one only boots about once on 10 attempts. Oh dear...what to do.
 
I would guess that at least one of your drives is out of alignment.

Using a drive that is out of alignment to write on a disk that was created or written on by another drive can make the disk unreadable on other drive/s, even if the disk was originally written on the other drive/s.

I suggest getting your floppy drives serviced, and don't write on any disk that already has information on it until then, because you will render it/them unreadable.

I can service your drives (for a fee of course). I've been servicing Shugart floppy drives since the 1970s.
 
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Sorry for the late reply.
Yes, certainly a service would be great idea, however I'm in New Zealand so unless I can find someone here how can do a professional job, then I'm probably out of luck.
 
Covering the basics:

I assume you don't have a cleaning disk? Can you open the drive covering enough to access the heads? Reaching in with Q-tip and alcohol can do the job.
Oxide buildup especially from old media can hinder the boot process too.
 
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