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Additional Pictures 

 

This TI-1706+ Prototype was manufactured in February 1996 by
Nam Tai Electronics in China.

The printed circuit board (PCB) of the TI-1706+ Prototype hides its
single-chip calculator circuit under a small epoxy blob.

Close-up view of the unknown single-chip calculator circuit.

Close-up view of the PCB-Marks of the TI-1706+.




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

Joerg Woerner, May 15, 2020. No reprints without written permission.