[Coco] Cleaning Coco disks (gene heskett)

[gene heskett]

On Sunday, January 22, 2012 12:39:46 PM Steven Hirsch did opine:

> On Sun, 22 Jan 2012, gene heskett wrote:
> > I've threatened to make a test jig I could clip onto the drive
> > connector so I could start and stop the motor and step it in and out,
> > but life kept getting in the way so it was never done back in the
> > 80's when it was needed.  Ideally it should also include a slow,
> > about 1 second counter that always sends like 31 pulses out, but only
> > 30 in, so that it will be banged against the Trk0 detector.  The auto
> > step one way or the other won't muck the scope trace observations all
> > that much, particularly if your sweep is triggered by the index
> > pulse, but it will serve to keep the drive from sitting on the same
> > track for long periods of time, both wearing out the track, and
> > causing multipass erasure so that eventually your good disk is
> > destroyed magnetically.  Head magnetization state is generally not a
> > factor in the real world.
> 
> I was lucky enough to score a Teaco drive test rig for $5.00 at a
> hamfest. It does exactly what you describe.  Just invaluable for
> servicing Olde Drives.

Some people have ALL the luck.  :)

Cheers, Gene
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