DATAMATH CALCULATOR MUSEUM
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DATAMATH CALCULATOR MUSEUM |
Additional Pictures
This MBO de Luxe III
(Version 2) was manufactured
in October 1975 in Japan. |
The MBO de Luxe III
(Version 2) is powered by
two disposable 1.5 Volt batteries. |
The MBO
de Luxe III (Version 2) calculator with the frontside of its housing removed. |
| The printed circuit board
(PCB) of the MBO de Luxe III (Version 2) is centered around a NEC µPD278 single-chip calculator circuit.  |
Close-up view
of the NEC µPD278 single-chip calculator circuit. |
Front- and backside of the
keyboard assembly of the MBO de Luxe III (Version
2) calculator. |
If you have additions to the above article please email: joerg@datamath.org.
© Joerg Woerner, April 5, 2025. No reprints without written permission.