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Additional Pictures 

 

The sales box of the Aurora CB-900 Check Book Calculator sold around 1983 in the US.



The Aurora CB-900 Check Book Calculator in its in its sleeve with holder for a checkbook, credit card and pen.

This Aurora CB-900 Check Book Calculator was manufactured in 1983 in Taiwan.

The Aurora CB-900 Check Book Calculator is powered by two LR54 (LR1130) batteries.

The printed circuit board (PCB) of the Aurora CB-900 Check Book Calculator is centered
around a NEC uPD1833G single-chip calculator circuit.

Close-up view of the NEC uPD1833G single-chip calculator circuit.


horizontal rule

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© Joerg Woerner, February 9, 2020. No reprints without written permission.