DATAMATH CALCULATOR MUSEUM
|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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© Joerg Woerner, November 3, 2008. No reprints without written permission.