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Additional Pictures 

 

 Inside view of the MR411 (left) compared with the
TI-1790 (right) manufactured by Toshiba .

 The PCB of the MR411 (left) and the TI-1790 (right).
The MR411 uses a Toshiba calculator chip, too.

The original Toshiba T3566 calculator chip.


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

Joerg Woerner, May 23, 2002. No reprints without written permission.