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Imperial 90K

Imperial 90K

Imperial 90K

Display is 8 digits, green fluorescent in a single tube.

4-function, %.

6 v (4 x AAA).

Main integrated circuit is NEC μDP943C (here date coded 1975).

74 mm x 118 mm x 20 mm. (3" x 4.7" x 0.8").

Made in Japan.
IMPERIAL BUSINESS EQUIPMENT

Imperial 90K inside

Inside showing the circuit board.  The VFD display is at the top and the NEC μPD943C integrated circuit is in the middle.

Vintage Calculators

© Text & photographs copyright Nigel Tout   2000-2017  except where noted otherwise.