Additional Pictures 


The sales box of the TI-31 SOLAR sold around 1987 in Germany.

This TI-31 SOLAR was 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.

The T6974S single-chip calculator circuit manufactured in CMOS-technology.

horizontal rule

If you have additions to the above article please email:

Joerg Woerner, June 11, 2017. No reprints without written permission.