[Coco] Help retrieving Coco disk images

[Gene Heskett]

On Wednesday 12 November 2014 22:18:54 Kandur did opine
And Gene did reply:
> Gene and John,
> I was able to use 'modern' no-belt, direct drives,
> at 300 rpm, to read and write 360k 5.25" diskettes.
> http://qdv.pw/coco/?p=128
> Robert Gault gave me his excellent basic program
> to verify the rotational speed.
> http://qdv.pw/coco/?p=58
> 
> Any leads on where to find a good 360K drive these days?
> John
> 
> Kandur

I might have 1 more good one, but its spares for what I have hooked up, 
Mark said he had 2 left but would have to retest them but hasn't checked 
back in to report.  Haunt flea markets and yard sales, Goodwill etc which 
is how I've collected the few I've had, and wore out the heads on.  But 
they are getting rare.
 
> Wednesday, November 12, 2014, 2:34:03 PM, you wrote:
> > On Wednesday 12 November 2014 17:19:24 Arthur Flexser did opine
> > 
> > And Gene did reply:
> >> Maybe worth checking the drive speed before buying a new drive?
> >> 
> >> Art
> > 
> > Yup, none of the belt style drives are now turning the correct speed
> > as the belt has stretched and is now slipping.  Since the belts
> > aren't generally available, I've been known to make do with whatever
> > looks like its about the correct length. I haven't tried it on a
> > spindle belt, but I do have a cdr/w in one of my shop machines whose
> > little square section belt to run the tray in and out stretched and
> > gave up.  Took some fussing but I cut about 1/4" out of it, the butt
> > glued it back together with superglue, and several years later it is
> > still working but the machine is now out of service & the new
> > machine is all sata, where that drive was ide/atapi.
> > 
> > Whether that could be done with the thin flat belt remains to be
> > seen, but if that is the problem, it might be worth a shot for
> > really steady hands. Mine likely don't quite qualify these days.  So
> > I'd make a jig of some sort to hold the ends steady and in touch
> > with each other.
> > 
> >> On Wed, Nov 12, 2014 at 12:43 PM, John Goerzen
> >> <jgoerzen at complete.org>
> >> 
> >> wrote:
> >> > Hi folks,
> >> > 
> >> > I was a Coco II (Disk Extended BASIC) user way back when.  I am
> >> > currently trying to preserve what data I had on those disks.
> >> > 
> >> > To do so, I have assembled a DOS machine out of old parts,
> >> > including a real 1.2MB FDD that works.  I have the COCO2EMU with
> >> > its RETRIEVE.EXE. I also have version 1.3 of RETRIEVE.EXE.
> >> > 
> >> > Both of them have only been able to read a single disk without
> >> > errors: a factory Tandy disk labeled "One-on-One".  I have no
> >> > memory of what that is.
> >> > 
> >> > On all my other disks, it generates a read error for sector 1 of
> >> > every track.  That is, if I ignore the error, it will read the
> >> > rest of that track's sectors but generate an error on sector 1 of
> >> > the next track. (Or perhaps it is ignoring the entire track and
> >> > doing nothing at all...)
> >> > 
> >> > Any ideas of what I might try here?
> >> > 
> >> > Thanks,
> >> > 
> >> > John
> >> > 
> >> > 
> >> > --
> >> > Coco mailing list
> >> > Coco at maltedmedia.com
> >> > https://pairlist5.pair.net/mailman/listinfo/coco
> > 
> > Cheers, Gene Heskett


Cheers, Gene Heskett
-- 
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