On Mon, 4 Sep 2017, Chuck Guzis via cctalk wrote:
I've got an HP 7970 tape drive here that's a little dicey on its reading
(haven't tried writing yet). One thing that I noticed today was that
the surface of the capstan is a bit powdery--wipe it with an alcohol
swab and you get a lot of black schmutz.
It wasn't very soft and it occurred to me that it might be slipping, so
I cleaned it off and treated it with some methyl salicylate (oil of
wintergreen). It's a bit softer now, but I'm wondering, for those of
you who still have functioning drives, how soft or "sticky/grippy" is right.
Any ideas?
The rubber on my 7970E capstan is not tacky, but fairly firm. I've
used Techspray Rubber Roller Rejuvenator successfully on keypunch rollers
to make them a bit "grippier" - maybe it would help?
https://www.techspray.com/roller-rejuvenator
Mike Loewen mloe...@cpumagic.scol.pa.us
Old Technology http://q7.neurotica.com/Oldtech/
