onsdag 24 februari 2021 skrev Chris Zach via cctalk <cctalk at classiccmp.org>:
They are RT11/TSX versions.
Now for the problem of the day. The TSX 5.1 distribution have damage to
track zero, my guess is they were in the Solarex drives where the wonderful
silicon dust did a job on them. Anyone got really good 8 inch floppy skills
and want to take a crack at reading them?
As far as I understand RX01/RX02 disks are not using track 0 at all. You
should be able to splice in track 0 from a working RX disk.
/Mattis
C