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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.

Facts at a glance:

Type Arithmetic
Functions 5
Keys 19
Precision 8
Logic Algebraic
Display type LED
Display size
Printer
Length 133 mm
Width 70 mm
Thickness unknown mm
Weight unknown g
Power Source
Country
Original price unknown
Est. current value unknown
Year introduced 1977
Year discontinued

See other calculators manufactured by Radio Shack.