Radio Shack EC-220
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:
| Feature | Value |
|---|---|
| Type | Arithmetic |
| Functions | 5 |
| Keys | 18 |
| Precision | 8 |
| Logic | Algebraic |
| Display type | LED |
| Length | 148mm |
| Width | 70mm |
| Thickness | 20mm |
| Weight | 130g |
| Power Source | PP3 9V |
| Year introduced | 1975 |
| Year discontinued | 1976 |
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: