All the discussion around 8" disks reminded me about a question I've not
been able to find an answer to.
I've got a Qumetrak 842 drive that I use for imaging 8" disks with either
ImageDisk or AppleSauce. When I first tried it out with AS, the listed
RPM was > 7K. It turns out that the disk I was working with was a NOS
Dysan that had both the single and double-sided index windows punched in
the jacket. The 842 has both of those index sensors, so both were being
triggered one after the other. The solution was to cover one of the index
windows on the disk.
The question I have is how did a contemporary system deal with the
combination of a disk with both index windows and a drive with both index
sensors?
tnx!
g.
--
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