DATAMATH CALCULATOR MUSEUM
box of the Tandy EC-306 Chequebook Calculator sold around 1986 in the
|The Tandy EC-306
Chequebook Calculator in its
sleeve with holder for a checkbook and pen.
Tandy EC-306 calculator
manufactured in January 1986 in Hong Kong
(Date code 1A6 » mth 01 yr 1986).
|The Tandy EC-306 calculator
is powered by two LR44 (G13) batteries.
|The printed circuit board
(PCB) of the Tandy 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 Tandy EC-306.
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© Joerg Woerner, February 8, 2020. No reprints without written permission.