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Additional Pictures
This Litton Royal Digital
V was manufactured
in May 1972 in Japan. |
The Litton Royal Digital
V is powered by
six rechargeable NiCd batteries. |
The
Litton Royal Digital V calculator with the frontside of its housing removed. |
| The Main printed circuit
board
(PCB) of the Litton Royal Digital V is centered around a General Instrument 251F single-chip calculator circuit.  |
The
keyboard module of the Litton Royal Digital V calculator.  |
Close-up view of the
General Instrument 251F single-chip calculator circuit. |
Close-up view of one the
two Mitsubishi M58212 chips. |
If you have additions to the above article please email: joerg@datamath.org.
© Joerg Woerner, July 9, 2025. No reprints without written permission.