21 Mar
1998
21 Mar
'98
4:36 a.m.
At 09:08 3/21/98 -0800, you wrote:
Believe it or not, I am not sure -- I am at work at the moment but will
check when I get home tonight.
This thing is in a big grey steel box with no switches, logos etc...
Regards
Jack Harper
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A friend
recently gave me, I think, a PDP-11/70 that was field hardened by
Schlumberger for use in a seismographic application. The thing was
repackaged, apparently by Schlumberger or a contractor, into an incredibly
heavy welded steel box with mil-spec/DIN circular (i.e., non-standard DEC I
think) connectors etc etc. It weighs at least 150lbs.
Are you sure this is a 11/70? A complete 11/70 system weighs more like
800 pounds - before mil-spec hardening. The CPU backplane and power
supplies are about 300 pounds, the memory box another 200 or so, and
then you need at least a Unibus box or two. And that's all before starting
to add Massbus disk drives, which are 400 or so pounds each.
with a more modern machine -- not because it
failed. So, I assume that the
beast contains a working processor board, memory, I/O controllers(?), etc.
A 11/70 processor is 13 boards, in a custom backplane. I think
what you have is a 11/73.
Tim. (shoppa(a)triumf.ca)