Search found 347 matches

by ZrX
Tue Nov 12, 2019 3:42 pm
Forum: Support
Topic: USB Interface/Controller for original DISK II Apple
Replies: 3
Views: 127

Re: USB Interface/Controller for original DISK II Apple

Any 1.2Mb HD floppydrive than can be flippymodded is usable for that purpose. Atleast known to work:

Panasonic JU-475-3/4/5
Newtronics D509V2/3/5
Teac FD-55GFR
by ZrX
Tue Nov 12, 2019 2:18 pm
Forum: Support
Topic: USB Interface/Controller for original DISK II Apple
Replies: 3
Views: 127

Re: USB Interface/Controller for original DISK II Apple

Disk II probably could be interfaced but you'd atleast need some microcontroller inbetween to translate the control signals. I guess the only direct solution currently available is the Applesauce board which does more or less the same, but compared to KryoFlux, you'll lose the track-to-index synchro...
by ZrX
Thu Nov 07, 2019 8:32 pm
Forum: General
Topic: Need advice on how to recover 5.25" floppy
Replies: 52
Views: 3053

Re: Need advice on how to recover 5.25" floppy

The resulting file from -i6 is d64 regardless of the suffix.
by ZrX
Thu Nov 07, 2019 6:51 am
Forum: General
Topic: Need advice on how to recover 5.25" floppy
Replies: 52
Views: 3053

Re: Need advice on how to recover 5.25" floppy

Yes, seem to be onesided disk.

The scatter plot in the UI can be used to check if a side has any content. If there are 2-4 distinct well separated horizontal lines visible on a track it must have something written on it. Just a kind of a vertical gradient all around the track is just noise.
by ZrX
Tue Nov 05, 2019 10:21 pm
Forum: General
Topic: Need advice on how to recover 5.25" floppy
Replies: 52
Views: 3053

Re: Need advice on how to recover 5.25" floppy

Ah, add -y -g2 -k2 before -i6.
by ZrX
Tue Nov 05, 2019 3:21 pm
Forum: General
Topic: Need advice on how to recover 5.25" floppy
Replies: 52
Views: 3053

Re: Need advice on how to recover 5.25" floppy

You can also add -l8 to clean up the status output a bit.

And perhaps set -m1 as the first switch.
by ZrX
Tue Nov 05, 2019 2:20 pm
Forum: General
Topic: Need advice on how to recover 5.25" floppy
Replies: 52
Views: 3053

Re: Need advice on how to recover 5.25" floppy

Script is almost good, you're just trying to overwrite files with the same name there, so better use different target name than "track".

No need to delete the tracks past 83 as KF will ignore those anyway.
by ZrX
Tue Nov 05, 2019 10:45 am
Forum: General
Topic: Need advice on how to recover 5.25" floppy
Replies: 52
Views: 3053

Re: Need advice on how to recover 5.25" floppy

You'd need to space the tracks from 40 to 80. track00.0.raw -> 00.0.raw track01.0.raw -> 02.0.raw track02.0.raw -> 04.0.raw track03.0.raw -> 06.0.raw track04.0.raw -> 08.0.raw ... For side 1 tracks you'd have to start from track 8 (track00.1.raw -> 08.1.raw) and you'll lose the first four tracks as ...
by ZrX
Mon Nov 04, 2019 10:54 pm
Forum: General
Topic: Need advice on how to recover 5.25" floppy
Replies: 52
Views: 3053

Re: Need advice on how to recover 5.25" floppy

I think I have a couple of DD drives. Should measure if there's any significant difference in the head signal between DD and HD drives when reading 1541 floppies.
by ZrX
Mon Nov 04, 2019 5:38 pm
Forum: General
Topic: Need advice on how to recover 5.25" floppy
Replies: 52
Views: 3053

Re: Need advice on how to recover 5.25" floppy

Either the disk is just bad or the drive that was used to write the disk is out of alignment. The drive dumping the disk has no problem with 1541s GCR-coding, the scatter plot shows the drive filter cuts off way below the fastest bitcells when looking at the noise from the unformatted tracks. The st...