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Additional Pictures 

 

This Radio Shack EC-100 was manufactured in November 1972 by Texas Instruments.

The EC-100 with the backside of the housing removed.

The printed circuit board (PCB) of the EC-100 removed from the housing.


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

Joerg Woerner, December 29, 2017. No reprints without written permission.