Radio Shack EC-250
The Radio Shack EC-250 is an arithmetic calculator with 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 3xAA batteries. Note: Bowmar MX-55
Facts at a glance:
| Feature | Value |
|---|---|
| Type | Arithmetic |
| Functions | 5 |
| Keys | 18 |
| Logic | Algebraic |
| Display type | LED |
| Length | 152mm |
| Width | 79mm |
| Thickness | 33mm |
| Power Source | 3xAA batteries |
| Year introduced | 1974 |
Replacements:
If you have a Radio Shack EC-250 that is no longer working, you can first try replacing the 3xAA batteries. 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: