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Radio Shack EC-4000 (Programmable)

The Radio Shack EC-4000 is a programmable calculator with 8 digits precision and algebraic logic. It has 40 keys, and an LED (light-emitting diode) display, typical of calculators of this era. The power source is 3xAA battery pack. Note: TI 57

Facts at a glance:

FeatureValue
TypeProgrammable
Keys40
Precision8
LogicAlgebraic
Display typeLED
Length146mm
Width76mm
Thickness35mm
Power Consumption1.000000W
Power Source3xAA battery pack
Year introduced1978
Year discontinued1978

Replacements:

If you have a Radio Shack EC-4000 that is no longer working, you can first try replacing the 3xAA battery pack batteries. If that doesn't solve the problem, then 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