At 09:08 3/21/98 -0800, you wrote:
>> 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_at_triumf.ca)
>
>
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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Received on Sat Mar 21 1998 - 12:36:49 GMT