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* [COFF] DEC terminal line driver chips?
@ 2021-04-29  7:02 Tom Ivar Helbekkmo via COFF
  2021-04-29 12:21 ` Brad Spencer
  2021-04-29 13:17 ` Clem Cole
  0 siblings, 2 replies; 8+ messages in thread
From: Tom Ivar Helbekkmo via COFF @ 2021-04-29  7:02 UTC (permalink / raw)
  To: coff

I've got a number of DEC terminals, ranging from the VT220 to the VT520
(sadly, I got rid of my VT100 and VT102 many years ago, before I started
collecting DEC equipment instead of just using it), and some of them
have one or more burned out serial ports.  Before I start taking them
apart to find out what chips were used, I figured I'd check if any of
you folks happen to know.  I'd like to order a stash of replacements,
and it would be nice to have them handy before I clear the work bench to
start dismantling terminals...

Oh, and for the record: the Q-bus PDP-11/23 uses 9636ACP and 9637ACP for
output and input, respectively, while the VAX-11/630 substitutes a
9639ATC optocoupler for the 9637ACP differential receiver.  (I have a
couple of spare CPU boards with damaged ports, as well, so these are all
on my shopping list already.)

-tih
-- 
Most people who graduate with CS degrees don't understand the significance
of Lisp.  Lisp is the most important idea in computer science.  --Alan Kay
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^ permalink raw reply	[flat|nested] 8+ messages in thread

end of thread, other threads:[~2021-04-30 16:57 UTC | newest]

Thread overview: 8+ messages (download: mbox.gz / follow: Atom feed)
-- links below jump to the message on this page --
2021-04-29  7:02 [COFF] DEC terminal line driver chips? Tom Ivar Helbekkmo via COFF
2021-04-29 12:21 ` Brad Spencer
2021-04-30  7:34   ` Dave Horsfall
2021-04-30 11:55   ` Tom Ivar Helbekkmo via COFF
2021-04-29 13:17 ` Clem Cole
2021-04-30  7:42   ` Dave Horsfall
2021-04-30 12:12   ` Tom Ivar Helbekkmo via COFF
2021-04-30 16:49   ` Derek Fawcus

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