Radio Shack EC-4020
The Radio Shack EC-4020 is a programmable calculator with 12 digits precision and algebraic logic. It has 44 keys, and an LCD (liquid crystal) display. The power source is 2x3V cell. Note: Casio fx-4000P
Facts at a glance:
| Feature | Value |
|---|---|
| Type | Programmable |
| Keys | 44 |
| Precision | 12 |
| Logic | Algebraic |
| Display type | LCD |
| Length | 133mm |
| Width | 72mm |
| Thickness | 10mm |
| Power Consumption | 0.010000W |
| Power Source | 2x3V cell |
| Year introduced | 1985 |
| Year discontinued | 1988 |
Replacements:
If you have a Radio Shack EC-4020 that is no longer working, you can first try replacing the 2x3V cell. 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: