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Radio Shack EC-221

The Radio Shack EC-221 is an arithmetic calculator with 8 digits precision and algebraic logic. It has 5 functions, 19 keys, and an LED (light-emitting diode) display, typical of calculators of this era. Note: Radofin Valuman; Unitrex 95SL

Facts at a glance:

FeatureValue
TypeArithmetic
Functions5
Keys19
Precision8
LogicAlgebraic
Display typeLED
Length133mm
Width70mm
Year introduced1977

Replacements:

If you have a Radio Shack EC-221 that is no longer working, 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