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Additional Pictures
This Litton Royal RC 80 was manufactured
in January 1973 in Japan.![]() |
| The Litton Royal RC 80 is powered by
six rechargeable NiCd batteries. Note: Batteries were previously removed to avoid leaking. ![]() |
The
Litton Royal RC 80 calculator with the frontside of its housing removed.![]() |
| The Main printed circuit
board
(PCB) of the Litton Royal RC 80 is centered around a General Instrument C-500 single-chip calculator circuit. ![]() |
The
keyboard module of the Litton Royal RC 80 calculator.![]() ![]() |
Close-up view of the
General Instrument C-500 single-chip calculator circuit.![]() |
Close-up view of one the
two Mitsubishi M58212 chips.![]() |
Close-up view of one the
FUTABA 8-CT-01A Vacuum Fluorescent Display (VFD).![]() |
If you have additions to the above article please email: joerg@datamath.org.
© Joerg Woerner, November 18, 2025. No reprints without written permission.