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Additional Pictures 

 

This Radio Shack EC-2006A calculator was manufactured around 1986 by Compal Electronics in Taiwan.

The printed circuit board (PCB) of the Radio Shack EC-2006A calculator is
centered around an unknown Sharp single-chip calculator circuit.

Close-up view of the Sharp LI3135MS single-chip calculator circuit.

Close-up view of the PCB-Mark of a EC-2006A.


horizontal rule

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

© Joerg Woerner, March 15, 2020. No reprints without written permission.