DATAMATH CALCULATOR MUSEUM
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DATAMATH CALCULATOR MUSEUM |
Additional Pictures
| This Longines Symphonette Electronic
Calculator was manufactured in December 1972 by Texas Instruments.  |
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| The printed circuit board (PCB) of
the Longines Symphonette Electronic Calculator. This PCB was located in a "B-series" calculator.
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Close-up view of the
TMS0103 single-chip calculator circuit. |
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Close-up view of the SN75491 segment driver chip. |
Close-up view of the SN75492 segment driver chip. |
Close-up view of the DIS40 display module. |
Close-up view of the DIS95 display module. |
If you have additions to the above article please email: joerg@datamath.org.
© Joerg Woerner, September 30, 2008. No reprints without written permission.
