DATAMATH  CALCULATOR  MUSEUM

Additional Pictures 

 

This Radio Shack EC-306 calculator was manufactured in January 1985 in Hong Kong (Date code 1A5 mth 01 yr 1985).

The Radio Shack EC-306 calculator is powered by two LR44 (G13) batteries.

The printed circuit board (PCB) of the Radio Shack EC-306 calculator is centered
around a NEC uPD1833G single-chip calculator circuit.

Close-up view of the NEC uPD1833G single-chip calculator circuit.

Close-up view of the PCB-Mark of a EC-306.


horizontal rule

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

Joerg Woerner, January 15, 2020. No reprints without written permission.