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DATAMATH CALCULATOR MUSEUM |
Additional Pictures
The Main printed circuit board
(PCB) of a Caltronic 812 calculator manufactured in
December 1972 with its (mirrored) backside.![]() |
The
Display
Module of a Caltronic 812 calculator manufactured in
December 1972 with its (mirrored) backside.![]() |
The
Keyboard
Assembly of a Caltronic 812 calculator manufactured in
December 1972 with its (mirrored) backside.![]() |
If you have additions to the above article please email: joerg@datamath.org.
© Joerg Woerner, June 29, 2026. No reprints without written permission.