DATAMATH  CALCULATOR  MUSEUM

Additional Pictures 

 

This Royal DT 80 (Version 1) calculator was manufactured in October 1984 by Cal-Comp Electronics in Taiwan.

The printed circuit board (PCB) of the Royal DT 80 (Version 1) calculator is
centered around a Sharp LI3135MS single-chip calculator circuit.

Close-up view of the Sharp LI3135MS single-chip calculator circuit.

Close-up view of the PCB-Mark of an early DT-80.


horizontal rule

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

Joerg Woerner, August 2, 2023. No reprints without written permission.