Search found 94 matches

by spags
Tue Oct 04, 2016 11:25 am
Forum: Support
Topic: ITT 2020 5.25" Disks
Replies: 12
Views: 1600

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: 1600

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: 1600

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.
by spags
Tue Sep 20, 2016 11:04 pm
Forum: Support
Topic: Kryoflux stopped working - no red led
Replies: 8
Views: 1070

Re: Kryoflux stopped working - no red led

I wonder what caused that then, for I imagine it would have had to be something considerable (like 12v shorting to 5v). I suggest caution. Glad you found the problem anyway.
by spags
Mon Sep 19, 2016 11:19 pm
Forum: Support
Topic: Kryoflux stopped working - no red led
Replies: 8
Views: 1070

Re: Kryoflux stopped working - no red led

Okay so you probably haven't done something obviously wrong then - I was leaning towards short on the board (dropped screw, ESD, board resting on drive casing, etc). Incidentally I read comments elsewhere that poly-fuses can become high-resistance for extended periods of time (weeks/months) under so...
by spags
Mon Sep 19, 2016 12:59 pm
Forum: Support
Topic: Kryoflux stopped working - no red led
Replies: 8
Views: 1070

Re: Kryoflux stopped working - no red led

Yes I understand that (and it should be working with only the Kyoflux plugged in). My question still stands though... how were you powering the drive when the incident occurred? Another possibility is that somehow there was a short circuit on the Kryoflux itself, which would/should only be due to a ...
by spags
Sun Sep 18, 2016 12:08 am
Forum: Dumping
Topic: Write a Mac 400/800K sector image using Kryoflux
Replies: 22
Views: 11987

Re: Write a Mac 400/800K sector image using Kryoflux

Sorry for another post, but incidentally someone has just released ProDOS v2.4 for the Apple // series.
by spags
Sat Sep 17, 2016 11:43 pm
Forum: Dumping
Topic: Write a Mac 400/800K sector image using Kryoflux
Replies: 22
Views: 11987

Re: Write a Mac 400/800K sector image using Kryoflux

I remember that there was a System Extension you could add on legacy Macs to enable support for the ProDOS filesystem. So a machine with that extension and PC Exchange would be able to read and write Mac HFS, Windows FAT and Apple // ProDOS. I don't remember anything about the capacities (never had ...
by spags
Fri Sep 16, 2016 11:41 am
Forum: Support
Topic: Kryoflux stopped working - no red led
Replies: 8
Views: 1070

Re: Kryoflux stopped working - no red led

Maybe you were powering the drive from the Kryoflux? That would be my guess - it sounds power related.
by spags
Fri Jul 29, 2016 11:18 pm
Forum: Support
Topic: Kryoflux board inside a PC?
Replies: 3
Views: 891

Re: Kryoflux board inside a PC?

I'm not sure of this but I think you need to be aware of a couple of things here. You can't presume the precise ordering that devices will be powered up. It is going to depend on factors relating to the design of the power supply and motherboard (and whatever the connected devices are). You are also...