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"lol.. tape transports and core memory.. the main box for our cpu had a 64K core memory array... what a beast'

I'm late to this one, happens a lot these days.

But I also rmember the constant 60 odd degree cooling to keep those things from toasting - fine until you left work into one hundred degrees and about 95% humidity - then fell over.

Also remember the teletype keyboard all fancied up beneath a far more elegant facade.

1960s Honeywell something or another (always backed up on an IBM 1410 (?)

The UYK-5 and associated hardware, tape trnsports, etc were all ambient cooled (air-conditioned and kept in the low to mid-60 degree range. No liquid coolants were used or needed for this old beast.

They were housed in co-joined portable trailer for ease of deployment into battlefield conditions. They would fit on a C130 and could be torn down, moved, setup and online in a few hours. I don't remember how many tons of batteries we had, but none of the stuff was of light construction.

We never did do the C130 thing but were Hot Standby a couple of times, this is toward the end of the Vietnam "experience".

We were the most envied guys on the base especially when it got really hot and sticky outside. The teletype could do a whole 50 bits a second, a real hummer. Imagine running on a 50 baud line today. LOL