DATAMATH CALCULATOR MUSEUM |
Additional Pictures
The sales
box of the Royal CBC 80 Checkbook Calculator sold around 1988
in the US. |
|
The Royal CBC 80 Checkbook
Calculator in its sleeve with holder for a
checkbook, credit cards and pen. |
|
This Royal CBC 80 Checkbook Calculator was manufactured in March 1988 in Thailand. | |
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.
|
|
Close-up
view of the Toshiba T7752S single-chip calculator
circuit.
|
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.