Display is 8 digits, green fluorescent in a single tube.
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
© Text & photographs copyright Nigel Tout 2000-2020 except where noted otherwise.