On Wed, 9 Aug 2017, Mike Stein via cctalk wrote:
Interesting reading here under disk formats:
https://en.wikipedia.org/wiki/86-DOS
Sounds like there were two Tarbell controllers, single and double density but both single-sided ?


NO
https://en.wikipedia.org/wiki/86-DOS#Disk_formats
includes a 1232K DSDD 8" format, with Tarbell 1791/1793

Also sounds like the FAT12 disk formats were not quite MS-DOS compatible...

Well, the LAST ones, . . . even then, "modern" MS-DOS handles a VERY limited repertoire of the FAT12 MS-DOS formats.


Do you have access to a flux-transition board (CP, Cat-weasel,Kryoflux, etc.)?


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