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:
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: