3 Jan
2022
3 Jan
'22
5:54 a.m.
From: Grant Taylor
From that last picture, it looks like one of the plugs
is five pronged,
and looks very similar to the 120/208V 30A 3? plug in one of the
pictures about the current 780 auction.
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.)
Noel
3 Jan
3 Jan
7:16 a.m.
On 2022-01-03 08:54, Noel Chiappa via cctalk wrote:
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?
8:39 a.m.
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?
The thing that always made me wonder is where are all the 8600's. The
8600 was apparently the best selling large Vax, outselling the 780 and
750, so what happened to all of them? They weren't any bigger than a 780...
C
9:43 a.m.
On Jan 3, 2022, at 8:39 AM, Chris Zach via cctalk <cctalk at classiccmp.org> wrote:
The thing that always made me wonder is where are all the 8600's. The 8600 was
apparently the best selling large Vax, outselling the 780 and 750, so what happened to all
of them? They weren't any bigger than a 780...
The only VAX 8xxx I?ve heard of in this area was scrapped. I managed to rescue the system
console and the ?digital? badge off of the VAX, but the scrapper had some sort of deal
with the Hospital that had it to scrap the VAX itself, IIRC.
Personally, these days, I think the largest I?d seriously consider is a VAX 4000 series,
though I?d try to figure out how to handle a VAX 7000 if the chance arose.
One of these days, I want to get SIMH/VAX running on a 12th Gen Core i7 (or better). With
the ancient i7 I have here, I?ve been able to get about 34 VUPS, which is faster than my
VAXstation 4000/90.
Zane
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?
856
days inactive
856
days old
4 comments
5 participants
participants (5)
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cz＠alembic.crystel.com -
elson＠pico-systems.com -
emu＠e-bbes.com -
healyzh＠avanthar.com -
jnc＠mercury.lcs.mit.edu