Additional Pictures 


The Canon F-62 with two really big lithium coin batteries with the
unusual CR2430 size. Other calculators use the more common
CR2025 type or even the small LR44 batteries. 

The internal construction of the F-62 gives no sign of Canon as
manufacturer of the calculator.
The calculator chip is easily identified as NEC uPD1856G.

Even the similar F-52 kept the secret of the manufacturer.

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If you have additions to the above article please email:

Joerg Woerner, June 22, 2003. No reprints without written permission.