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

From: Fred Cisin <cisin_at_xenosoft.com>
Date: Thu Sep 30 18:43:03 1999

On Thu, 30 Sep 1999, Dwight Elvey wrote:
> 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.

That's the right way to do it, ANY time that you have two different head
widths. (360K wide head v either 1.2M or 720K 5.25" narrow head)

A virgin disk would do fine, but these days it might be hard to find a
diskette that isn't either used or pre-formatted.


But if your data matters, avoid ever using a diskette with the wrong
coercivity.
Received on Thu Sep 30 1999 - 18:43:03 BST