3 Jan
2022
3 Jan
'22
9:11 a.m.
On 1/3/22 9:16 AM, emanuel stiebler via cctalk wrote:
On 2022-01-03 08:54, Noel Chiappa via cctalk wrote:
We had two /780's I was partially responsible for.? we never
had EMC trouble with them, they were really ROCK solid
machines. These were not the first 780 machines made, they
were delivered in about 1980 and 1982-3.? Neither were ever
upgraded to /785.
Jon
Not too surprising; the /780 and /785 are
basically the
same machine. (In
fact, one could convert a /780 to a /785 by pulling out
the /780 CPU cards
and replacing them with a set of /785 cards; basically
the same cards, with
the 74S chips replaced with 74AS.)
There should be more /785s out there than plain /780...
IIRC, most /780 were upgraded, as the "old" /780 had some
EMC issues
in the field? Am I dreaming this up?