DATAMATH  CALCULATOR  MUSEUM

Additional Pictures 

 

The internal construction of the EL-503 mixes different technologies,
 a rigig printed circuit board (PCB) for the calculator circuit and a
flexible circuit for the keyboard assembly.

The TP0327 single-chip calculator circuit is based on the
famous TMS1000 microcomputer family.


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

Joerg Woerner, November 3, 2008. No reprints without written permission.