DATAMATH CALCULATOR MUSEUM
sales box of the
TI-31 SOLAR sold
around 1987 in Germany.
manufactured in October 1987 by
Toshiba in China (Date code T-1087 » mth 10 yr 1995).
|The printed circuit board
(PCB) of the TI-31 SOLAR is centered
around the Toshiba T6974S single-chip calculator circuit.
T6974S single-chip calculator circuit manufactured in
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© Joerg Woerner, June 11, 2017. No reprints without written permission.