S100 Floppy Controller Question

M H Stein dm561 at torfree.net
Sun Nov 11 16:33:20 CST 2007


-------------Original Messages:
Date: Sun, 11 Nov 2007 11:23:30 -0500
From: "Richard A. Cini" <rcini at optonline.net>
Subject: Re: S100 Floppy Controller Question

Good. The Morrow controller then falls into the same category in my mind as
the ComprPro Disk 1 with the added bonus of not requiring mods to my IMSAI.

Now the thousand-dollar question -- does anyone have a suitable disk image I
could use?


On 11/11/07 10:55 AM, "Tim Shoppa" <shoppa_classiccmp at trailing-edge.com>
wrote:

> "Richard A. Cini" <rcini at optonline.net> wrote:
>> Oh, I also just found a Morrow DiskJockey 2D/B in one of my boxes. This
>> model has only a 50-pin connector and the manual talks about the SA800, so
>> I'm assuming it's an 8"-only controller.
> 
> Well, originally intended for 8" drives, but with a suitable adapter
> cable glue and a slightly modified BIOS it'll do 5.25" and 3.5" drives.
> 
> Tim.

Rich

----------Reply:

I think Tim's point was that if your controller's smart enough to deal with a
relatively modern 8" drive like a TM848 it could probably deal equally
well with a 5.25" HD drive and you could transparently restore an 8" image
(if you have one) to the 5.25" disk. The controller (and CP/M) would not
even know that it's a 5.25 instead of an 8"; my Cromemcos certainly don't, 
although a different FDC might well require some mods to the BIOS.

Worth a try in any case.

m




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