HEATHKIT ES-400 ANALOG COMPUTER SEARCH (THE BIG ONE)

[David Monroe]

Thank you for the responses received to date about my inquiry concerning the
Heathkit analog computer.  It has been brought to my attention that the EC-1
analog computer has been seen on e-bay several times in the last two years.

The EC-1 is the little brother to the ES-400 machine (sometimes called the
H-1) that I hoping somebody has seen.
The EC-1 is in a "standard" Heathkit amateur transmitter metal box like the
DX-100B uses, 19 5/8" w. by 11 1/2" h. by 15" d. It has a flat front panel.

The ES-400 is a MUCH larger unit with a sloping panel, displaying an
impressive row of 45 exposed vacuum tubes along the top!  The front panel
has over 300 banana plug sockets 30 plus switches and knows, and a big meter
like a tube tester.  It had a whole series of option modules that all had
ES-xx numbers.   I would be happy to forward an image of the ES-400 to
anybody who is interested.

Please let me know if you know of an ES-400 (THE BIG ONE) knocking around.
I am beating the bushes.

Thank you again,
David





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