|IDA (Integro-Differential Analyzer)
|Computer Corporation of America
|New York, New York
Introduced in 1951.
The main cabinet (on the right) measures
36 3/4" high, 21 1/2" wide, and 15" deep making it the first commercial
desk-top analog computer. Computing amplifiers use 1-12AX7 and 1-6U8.
Potentiometers are 50,000 ohm +/-.5% linearity. Integrating capacitors
are 1 mfd +/-1% tolerance. Other features include an interchangeable
set-up board, a HOLD mode, overload indicators for all amplifiers,
auxiliary connectors for interconnecting two or more computers, and a
test socket that permits checking and servicing of amplifiers without
computer shut-down or allows a 21st amplifier to be added.
the left is the Recorder Control Unit which allows selection of any
computed quantity by either recorder channel, and contains a two channel
magnetic oscillograph to record all solutions as a function of time.
The NLU-2 Function Simulator allows back-lash, dead-zone and
limiting to be added to any problem.
|Technology: ||Vacuum tubes
|Operating range: ||+/- 50 volts DC
|Computing Elements: ||20 - amplifiers
|  ||23 - 10 turn potentiometers
|  ||8 - integrating capacitors