DATAMATH CALCULATOR MUSEUM
|
|
DATAMATH CALCULATOR MUSEUM |
Additional Pictures
| The Royal LCB 841 Checkbook
Calculator in its sleeve with holder for a
checkbook and pen.
|
| This
Royal LCB 841 Checkbook Calculator
was
manufactured in 1981 in Japan.
|
The Royal LCB 841 Checkbook
Calculator is powered by two LR54 (LR1130) batteries. |
| The printed circuit board
(PCB) of the Royal LCB 841 Checkbook Calculator is centered around a NEC uPD1833G single-chip calculator circuit.
|
| Close-up
view of the NEC uPD1833G single-chip calculator
circuit.
|
If you have additions to the above article please email: joerg@datamath.org.
© Joerg Woerner, February 5, 2020. No reprints without written permission.
