[Coco] what kind of drives are these?

Gene Heskett gheskett at shentel.net
Tue Oct 17 19:46:36 EDT 2017


On Tuesday 17 October 2017 19:28:53 Barry Nelson wrote:

> > Gene Heskett
> > Tue Oct 17 19:15:19 EDT 2017
> >
> > Not sure of the brand, but from the cable arrangement, its an "MFM"
> > drive, possibly with RLL encoding.  Max capacity would be 32
> > megabytes if RLL, or just over 20 without. The controller I haven't
> > seen before but looks as if it has 2 expansion slots sticking up on
> > the left end. The only mfm drive I had was a seagate st-238, and I
> > drove it with one of the very early B&B interfaces, totally
> > different from the controller in these pix. Before powering it up,
> > locate a rubber hammer, and if you don't hear it winding up within a
> > second of power up, give the drive case a gentle tap on a front
> > corner so as to bump it sideways, which may be enough to free stuck
> > heads from the effects of stiction, which may be holding the
> > platters from spinning up.
>
> Sorry, Gene, but I disagree. I do not see any MFM or RLL drives in the
> photos that I noticed. I saw an IDE drive attached to a Glenside IDE
> controller and two unidentified white floppy drives. Rietveld, if you
> take the cover off the floppy drives, you might be able to see the
> individual floppy drive make and model information marked somewhere on
> the drives. If you could post that it might help identify what type of
> drives they are.

From the original sized image it looks like a white control cable, with a 
black data cable behind it, but once I'd figured out how to magnify it, 
I only see one IDE cable. So you are correct.

Cheers, Gene Heskett
-- 
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Genes Web page <http://geneslinuxbox.net:6309/gene>


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