> > > I think it is rather unlikely that relatively recent DEC > machines had any asbestos in them. Possibly some very old > machines from the 1950's and 1960's might. I know some old > PDP-8's had mercury power contactors in them. I can't > imagine where one would use asbestos in a computer. You > mention tape drive braking mechanisms. I don't recall ANY > DEC tape drive that had a "braking mechanism", all control > of the reels was done electronically. > > Jon > > The Datamec Model D2020 1/2" magnetic tape drive from the 1960s has a mechanical brake. The drive became the HP 7975A tape drive which was sold by DEC as the TU20 tape drive.
-- Michael Thompson
