DATAMATH CALCULATOR MUSEUM
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DATAMATH CALCULATOR MUSEUM |
Additional Pictures
| The boxy design
of the Sanyo ICC-82D.
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| The
dismantled ICC-82D reveals a huge printed circuit board (PCB)
with the calculator brain, display drivers and Nixie tubes; a hand-wired keyboard assembly and a sealed battery pack.
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| The display
of the original ICC-82D (upper row) side-by-side with the second version of the ICC-82D.
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Detail of one Nixie tube.
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| The calculator brain
with
four Sanyo chips (manufactured under license
of
General Instruments Corp.) and the discrete display drivers. Please notice the different date codes of the 4 chips: The LM8001, LM8002, and LM8003 were manufactured mid of 1970, the LM8004 mid of 1971. The backside of the PCB gives an easy explanation: It was replaced end of 1971.
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If you have additions to the above article please email: joerg@datamath.org.
© Joerg Woerner, March 29, 2003. No reprints without written permission.
