DATAMATH CALCULATOR MUSEUM
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DATAMATH CALCULATOR MUSEUM |
Additional Pictures
This MBO de Luxe III
(Version 1) was manufactured
in May 1975 in Japan. |
The MBO de Luxe III
(Version 1) is powered by
two disposable 1.5 Volt batteries. |
The MBO
de Luxe III (Version 1) calculator with the frontside of its housing removed. |
| The printed circuit board
(PCB) of the MBO de Luxe III (Version 1) is centered around a NEC µPD277 single-chip calculator circuit.  |
Close-up view
of the NEC µPD277 single-chip calculator circuit. |
Close-up view of the
NEC LD8122 Vacuum Fluorescent Display (VFD).  |
Front- and backside of the
keyboard assembly of the MBO de Luxe III (Version
1) calculator.  |
If you have additions to the above article please email: joerg@datamath.org.
© Joerg Woerner, March 5, 2025. No reprints without written permission.