DATAMATH CALCULATOR MUSEUM
|This TI-1798 Desktop Calculator
manufactured in September 1990 by
Inventec Corporation in Taiwan (Date code I-0990 » mth 09 yr 1990).
|The TI-1798 manufactured
in Taiwan is powered by
4 solar cells and misses the backup battery
Close-up view of the Toshiba T9731BU single-chip calculator
view of the PCB-Mark of a TI-1798.
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© Joerg Woerner, March 21, 2020. No reprints without written permission.