PDP-1 as minicomputer [was RE: OT - sort of]
wdonzelli at gmail.com
Wed Aug 18 15:37:44 CDT 2010
> Helium filled?!?!? Must have leaked like crazy.
The Helium was really just a small player in the whole technology of
the TCM. By far, most of the heat was conducted away through the
ceramic substrate and the metal pistons to the water cooled cold
Also, I do not know if the Helium was pressurized at all, so leakage
may have been pretty slow.
It is too bad so few of these IBM water machines are still around. I
know of only maybe a half dozen. I would still like to get one.
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