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Additional Pictures 

 

This Technico SL-674CK was manufactured in 1982 in Taiwan.

The printed circuit board (PCB) of the Technico SL-674CK is centered
around an unknown single-chip calculator circuit.

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

Close-up view of the PCB-Mark of the SL-674CK.


horizontal rule

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

Joerg Woerner, April 16, 2020. No reprints without written permission.