DATAMATH CALCULATOR MUSEUM
Radio Shack EC-306 calculator
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.
view of the NEC uPD1833G single-chip calculator
Close-up view of the PCB-Mark of a EC-306.
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© Joerg Woerner, January 15, 2020. No reprints without written permission.