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Additional Pictures 

 

This Technico LC-741CK was manufactured in December 1982 in Taiwan.

The printed circuit board (PCB) of the Technico LC-741CK is centered
around an unknown single-chip calculator circuit.

Close-up view of the unknown
single-chip calculator circuit
.

The memory keys of the LC 741CK (left)
and APF 3552 (right).

Close-up view of the PCB-Mark of
the Technico LC-741CK.


horizontal rule

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

Joerg Woerner, March 26, 2020. No reprints without written permission.