DATAMATH CALCULATOR MUSEUM
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DATAMATH CALCULATOR MUSEUM |
Additional Pictures
The sales
box of the Datexx DB-403 calculator sold in 2020
in the US. |
| The Datexx DB-403 in its
sleeve with holder for a checkbook.
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| This
Datexx DB-403
was
manufactured in December 2014 in China.
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The Datexx DB-403 calculator is powered by just one LR54
(LR1130)
battery. |
| The printed circuit board
(PCB) of the Datexx DB-403 calculator is centered around an unknown single-chip calculator circuit hiding under a small epoxy blob.
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| Close-up
view of the unknown single-chip calculator
circuit.
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If you have additions to the above article please email: joerg@datamath.org.
© Joerg Woerner, January 12, 2020. No reprints without written permission.
