Radio Shack EC-425
The Radio Shack EC-425 is an arithmetic calculator with 8 digits precision and algebraic logic. It has 10 functions, 23 keys, and an LED (light-emitting diode) display typical of calculators of this era. The power source is 3xAA batteries. Note: TI SR-10
Facts at a glance:
| Feature | Value |
|---|---|
| Type | Arithmetic |
| Functions | 10 |
| Keys | 23 |
| Precision | 8 |
| Logic | Algebraic |
| Display type | LED |
| Length | 160mm |
| Width | 79mm |
| Thickness | 38mm |
| Power Consumption | 1.000000W |
| Power Source | 3xAA batteries |
| Year introduced | 1974 |
| Year discontinued | 1975 |
Replacements:
If you have a Radio Shack EC-425 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: