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DATAMATH CALCULATOR MUSEUM |
Additional Pictures
The sales
box of the Royal CBC 80 Checkbook Calculator sold around 1988
in the US.![]() ![]() |
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The Royal CBC 80 Checkbook
Calculator in its sleeve with holder for a
checkbook, credit cards and pen.![]() |
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This
Royal CBC 80 Checkbook Calculator
was
manufactured in March 1988 in Thailand.
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The printed circuit boards
(PCBs) of the Royal CBC 80 manufactured in March 1988
doesn't reveal type and manufacturer of its single-chip calculator circuit but we are almost positive to spot a Toshiba T7752S. Compare a PCB from 1989. ![]()
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Close-up
view of the Toshiba T7752S single-chip calculator
circuit.
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Close-up view of the PCB-Marks of
two
CBC 80.![]() ![]() |
If you have additions to the above article please email: joerg@datamath.org.
© Joerg Woerner, February 13, 2020. No reprints without written permission.