Radio Shack EC-475
The Radio Shack EC-475 is a scientific calculator with 8 digits precision and algebraic logic. It has 17 functions, 20 keys, and an LED (light-emitting diode) display typical of calculators of this era. The power source is PP3 9V. Note: General Instrument EZ 3500
Facts at a glance:
| Feature | Value |
|---|---|
| Type | Scientific |
| Functions | 17 |
| Keys | 20 |
| Precision | 8 |
| Logic | Algebraic |
| Display type | LED |
| Length | 157mm |
| Width | 76mm |
| Power Source | PP3 9V |
| Year introduced | 1976 |
| Year discontinued | 1976 |
Replacements:
If you have a Radio Shack EC-475 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 model as a replacement: