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Radio Shack EC-4004

The Radio Shack EC-4004 is a programmable calculator with 10 digits precision and algebraic logic. It has 39 keys, and an LCD (liquid crystal) display. Note: Casio fx-3500P

Facts at a glance:

FeatureValue
TypeProgrammable
Keys39
Precision10
LogicAlgebraic
Display typeLCD
Length133mm
Width71mm
Thickness9mm
Power Consumption0.000430W
Year introduced1980
Year discontinued1988

Replacements:

If you have a Radio Shack EC-4004 that is no longer working, you can consider replacing the calculator with a modern equivalent. We suggest the following current model as a replacement:

See other calculators by Radio Shack