DATAMATH  CALCULATOR  MUSEUM

Additional Pictures 

 

The Main printed circuit board (PCB) of a Litton Royal RC 80 calculator manufactured in January 1973 with its (mirrored) backside.


horizontal rule

If you have additions to the above article please email: joerg@datamath.org.

© Joerg Woerner, November 18, 2025. No reprints without written permission.