Royal Digital V
Royal Digital V
Display is 8 digits, green fluorescent in a single tube.
4-function.
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.
View inside with the main circuit board unplugged, showing the Nicad battery pack and the power supply circuit.
Imperial models
Vintage British Calculators
Text & photographs copyright, except where stated otherwise, © Nigel Tout 2000-2024.