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Additional Pictures 

 

This Casio CB-80 Checkbook calculator was manufactured in Japan.

The Casio CB-80 Checkbook calculator is powered by a 3V Lithium battery.

The printed circuit board (PCB) of the Casio CB-80 Checkbook calculator is centered
around a Hitachi HD43570 single-chip calculator circuit.

Close-up view of the Hitachi HD43570 single-chip calculator circuit.


horizontal rule

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

Joerg Woerner, November 30, 2019. No reprints without written permission.