On Thu, Jul 30, 2026 at 01:03:22PM +0200, Christian Corti wrote: > On Wed, 29 Jul 2026, Jon Elson wrote: > > can't imagine where one would use asbestos in a computer. You mention tape > > Isolation/mounting pads on power resistors. > > > drive braking mechanisms. I don't recall ANY DEC tape drive that had a > > "braking mechanism", all control of the reels was done electronically. > > DEC TU10 > Metal on metal magnetic brake. At least by the time I took it apart when restoring my TU10. Some of the reel motor brushes were worn down to the metal. Had a lot of hours. https://www.pdp8online.com/tu10/tu10-repair.shtml
TU55 also has brake. Haven't taken one apart.
