floppy controller IC (was Re: Fixing a PET?)

From: Dwight Elvey <elvey_at_hal.com>
Date: Thu Sep 30 16:46:58 1999

Don Maslin <donm_at_cts.com> wrote:
> > ISTR formatting DSHD diskettes to 360 KB in an emergency (we're talking
> > IBM-type pcs here) but only after hitting them with a bulk tape eraser to
> > wipe them clean, and then using the proper DOS FORMAT parameters . . .
> Was this in a 1.2mb drive? I never tried that, only in a 360k drive.
> Hmmm! Interesting, I just tried it and it seems to work. Even wrote to
> it in a 360k drive and it was readable. Question is, how long?

 This is the same thing I was talking about, using a magnet
to erase with. The only problem you may have is if you then
write a file with a 360K disk drive, you can never write to
it again with the 1.2M drive. If you do, you'll not be able
to read it again with the 360K drive. As was mentioned before,
the 1.2M drive writes a narrower track. I do have a 360K drive
that I keep around just to make 360K copies but the
1.2M trick will work if nothing else is available.
Received on Thu Sep 30 1999 - 16:46:58 BST

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