Additional Pictures 


The printed circuit board (PCB) of the Canon FS-5 OHP calculator
hides at first glance the manufacturer of its calculator brain.

Fourteen screws are not really a challenge and we
revealed a Toshiba T6824S single-chip calculator circuit.

horizontal rule

If you have additions to the above article please email:

Joerg Woerner, February 2, 2011. No reprints without written permission.