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Additional Pictures 

 

The Montogomery Ward electronic D8F aka TXI-8647A looks similiar to
the Radio Shack EC-1000 but lacks the second slider switch on the small PCB.

The label of the Montogomery Ward electronic D8F states the
official  TXI-8647A designation.


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

Joerg Woerner, December 30, 2006. No reprints without written permission.