5 Mar
2017
5 Mar
'17
10:41 a.m.
On Mar 5, 2017, at 09:49, Chuck Guzis via cctalk
<cctalk at classiccmp.org> wrote:
I don't recall many who used those yellow rings for their intended
purpose. It was just too easy to forget to remove one. You mounted
tapes without and reached around the back of the reel with a punch card
and tripped the "finger" that detected the ring.
So, was the write enable state latched at some point in the loading cycle on those drives?
That surprises me, because I would have expected the write enable sensor to interrupt
write current as combinatorial function on the drive, and/or pass sensor status up to the
formatter a combinatorial signal.
--
Mark J. Blair, NF6X <nf6x at nf6x.net>
http://www.nf6x.net/