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Additional Pictures 

 

First design with the TP0320 / CD3202 calculator chip.

Italian design with the TP0320 / CD3202 calculator chip.

 Second design with the TP0320 / CD3202 in a small package.

In Brazil the TP0320 / CD3202 design survived.

Third design with the rare TP0455 / CD4515 design.

Final design with the corrected TP0456 / CD4565 design.

Even the LOGpit started with a rare TP0455 / CD4514 design.

Another design found in the LOGpit with an additional X-TAL.


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

© Joerg Woerner, March 25, 2002. No reprints without written permission.