16 Jun
2015
16 Jun
'15
11:23 a.m.
On Jun 16, 2015, at 11:22 , Johnny Billquist <bqt
at update.uu.se> wrote:
Or rotating capstans...
--
Mark J. Blair, NF6X <nf6x at nf6x.net>
http://www.nf6x.net/
Pretty much the standard CDC vacuum-column design since the 1960s. The
TU80 is, after all, a CDC product. Two counter-rotating capstans--tape
movement is determined by applying positive or negative pressure to
ether or both (i.e. positive pressure on both results in the tape
"floating"
Uh... The TU80/TU81 do not have vacuum columns...