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Additional Pictures 

 

This IMA LC 685S calculator was manufactured in July 1983 in Taiwan.

The printed circuit board (PCB) of the IMA LC 685S calculator is
centered around an unknown Sharp single-chip calculator circuit.

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

Close-up view of the PCB-Mark of a IMA LC 685S.


horizontal rule

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

© Joerg Woerner, May 7, 2020. No reprints without written permission.