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Additional Pictures 

 

The sales box of the Royal LCB 830 Checkbook Calculator sold around 1983 in the US.



The sales box of a Royal LCB 830 Checkbook Calculator sold around 1985 in the US.

The Royal LCB 830 Checkbook Calculator in its in its sleeve with holder for a checkbook and pen.

This Royal LCB 830 Checkbook Calculator was manufactured in May 1983 in Taiwan.

The Royal LCB 830 Checkbook Calculator is powered by two LR54 (LR1130) batteries.

The printed circuit board (PCB) of the Royal LCB 830 Checkbook Calculator is centered
around a NEC uPD1832G single-chip calculator circuit.

Close-up view of the NEC uPD1832G
single-chip calculator circuit
.

Close-up view of the PCB-Mark
of a Royal LCB 830 calculator.

Close-up view of the jumper on the PCB
of a Royal LCB 830 calculator.



horizontal rule

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

© Joerg Woerner, February 27, 2020. No reprints without written permission.