DATAMATH CALCULATOR MUSEUM |
Additional Pictures
This
Melcor Model 1000
was
manufactured in October 1973 in the United
States.
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The Melcor Model 1000 is powered
calculator is powered by a 9V battery.
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The main assembly
of the Melcor Model 1000 calculator with keyboard and display module
visible.
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The printed circuit board
(PCB) of the Melcor Model 1000 calculator is centered around an AMI S2144 single-chip calculator circuit with two additional digit driver chips.
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The
Close-up
view of the AMI S2144 single-chip calculator circuit.
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The
Close-up
view of the ITT 492 digit driver chip.
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The
Close-up
view of the SL23557 digit driver chip.
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The
Close-up
view of the unknown Nine-Digit LED display module.
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If you have additions to the above article please email: joerg@datamath.org.
© Joerg Woerner, February 5, 2023. No reprints without written permission.