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Imperial 90K

Imperial 90K

Display is 8 digits, green vacuum-fluorescent display (VFD) 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

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

Vintage British Calculators

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