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Additional Pictures 

 

This TI-40 was manufactured for Koh-I-Noor in May 1977 by
Texas Instruments in Italy (Date code RCI 2177 wk 21 yr 1977).

The whole electronics of the TI-40 calculator
fits on the display printed circuit board (PCB).


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If you have additions to the above article please email: joerg@datamath.org.

Joerg Woerner, March 7, 2013. No reprints without written permission.