DATAMATH CALCULATOR MUSEUM
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DATAMATH CALCULATOR MUSEUM |
Additional Pictures
| The battery
compartment of the Montgomery Ward TXI-8646A calculator gives access to 4 AA sized alkaline cells.
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| The printed
circuit board (PCB) of the Montgomery Ward TXI-8646A looks different to our expectation - a calculator circuit in a 40-pin housing. Please notice the small number near the display: 13-04-709-478.
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The calculator circuit
was manufactured in the 5th week of 1974 by Western Digital and featured already a 4-key memory.
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If you have additions to the above article please email: joerg@datamath.org.
© Joerg Woerner, September 20, 2002. No reprints without written permission.
