Vintage British Calculators

Home > Imperial

Royal Digital V

Royal Digital V

Royal Digital V

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


Main integrated circuit - General Instruments GI 251F (here date coded 7245) or C-500.

7.2 v (6 x AA rechargeable cells).

88 mm x 150 mm x 36 mm (3.5" x 5.9" x 1.4").

Introduced 1972.

Made in Japan.

Inside Royal Digital V

View inside with the main circuit board unplugged, showing the Nicad battery pack and the power supply circuit.


Vintage British Calculators

Text & photographs copyright, except where stated otherwise, © Nigel Tout 2000-2024.