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Radio Shack EC-220

Radio Shack EC-220
Image: Joe Haupt, CC BY-SA 2.0

The Radio Shack EC-220 is an arithmetic calculator with 8 digits precision and algebraic logic. It has 5 functions, 18 keys, and an LED (light-emitting diode) display, typical of calculators of this era. The power source is PP3 9V. Note: Rockwell 8R; 9TR; House of Fraser 8F

Facts at a glance:

FeatureValue
TypeArithmetic
Functions5
Keys18
Precision8
LogicAlgebraic
Display typeLED
Length148mm
Width70mm
Thickness20mm
Weight130g
Power SourcePP3 9V
Year introduced1975
Year discontinued1976

Replacements:

If you have a Radio Shack EC-220 that is no longer working, you can first try replacing the PP3 9V battery. If that doesn't solve the problem, then you can consider replacing the calculator with a modern equivalent. We suggest the following current models as possible replacements:

See other calculators by Radio Shack