Search found 91 matches

by spags
Sun Jan 22, 2017 12:38 am
Forum: Dumping
Topic: Apple II disk Grrr.....
Replies: 63
Views: 7135

Re: Apple II disk Grrr.....

I don't know but maybe not. I have a few 5.25 drives that I use to get around similar problems to what you see here. When I do get this problem from one drive, it is not unusual to find that one of the other drive(s) is able to pick up other parts of the disk (or sometimes almost all of the disk). I...
by spags
Mon Jan 16, 2017 12:43 pm
Forum: Support
Topic: "No disk in drive"
Replies: 11
Views: 1373

Re: "No disk in drive"

On the small chance that it has happened, check for any bent pins on the floppy connector of your Kryoflux? While you are checking that, see if they all look clean as well. Also to state the obvious, make sure you are connecting the floppy cable the right way - I don't know what the consequences are...
by spags
Tue Jan 03, 2017 12:05 am
Forum: Support
Topic: A few Apple 5.25 floppies can't be detected
Replies: 13
Views: 1209

Re: A few Apple 5.25 floppies can't be detected

So the "no disk in drive" problem disappeared after your cleaning or was it still a problem?
by spags
Fri Dec 30, 2016 11:32 am
Forum: Support
Topic: A few Apple 5.25 floppies can't be detected
Replies: 13
Views: 1209

Re: A few Apple 5.25 floppies can't be detected

Yes it is quite difficult to tell if the disk is actually spinning. One trick I have used is to dry a tiny "drop" of isopropyl alcohol somewhere very close to the hub at a single location. The evaporation mark left behind can help to see if the disk is actually rotating in the drive (although it is ...
by spags
Thu Dec 29, 2016 11:29 pm
Forum: Support
Topic: A few Apple 5.25 floppies can't be detected
Replies: 13
Views: 1209

Re: A few Apple 5.25 floppies can't be detected

Based on your description, my guess would be that there isn't quite enough pressure on the disk from the spindle. You say there is evidence that the index hole is moving, but it might be that the movement was only a few degrees around the disk (before it completely lost its grip and started slipping...
by spags
Thu Dec 29, 2016 1:31 pm
Forum: Support
Topic: A few Apple 5.25 floppies can't be detected
Replies: 13
Views: 1209

Re: A few Apple 5.25 floppies can't be detected

Reading SomeGuy's suggestions made me think of a possible explanation for your problems. The disks that have this problem, do they all have their central hubs present and intact? Could it be that the hubs are absent and that the spindle isn't completely gripping onto the floppy surface? A slipping s...
by spags
Mon Oct 10, 2016 9:39 pm
Forum: Support
Topic: ITT 2020 5.25" Disks
Replies: 12
Views: 1519

Re: ITT 2020 5.25" Disks

-dd1, ah yes it is probably the same as that GUI option.
by spags
Tue Oct 04, 2016 11:25 am
Forum: Support
Topic: ITT 2020 5.25" Disks
Replies: 12
Views: 1519

Re: ITT 2020 5.25" Disks

It is still worth a try even though the drive is HD - there may be jumpers or toggle switches in the drive circuitry that affect the drive operation and specifically setting or unsetting the density can make a difference (it might not, but it can). Frankly, there is a risk from simply placing your f...
by spags
Mon Oct 03, 2016 9:02 am
Forum: Support
Topic: ITT 2020 5.25" Disks
Replies: 12
Views: 1519

Re: ITT 2020 5.25" Disks

Oh well. If you haven't tried it already, it is worth specifically attempting -dd1 in "other options" as well. I find that for only 1 or 2 bad sectors in a track, I have a chance of a successful read after many retries. How many retries I attempt depends on the disk condition and my desperation. I s...
by spags
Wed Sep 28, 2016 8:41 am
Forum: Support
Topic: ITT 2020 5.25" Disks
Replies: 12
Views: 1519

Re: ITT 2020 5.25" Disks

Don't forget to try the drive density select AGC option (from memory -dd0 or -dd1 from the command line), which might improve your results. This would be as good as it gets in regards to a "software" tweak.