Radio Shack EC-21 (Blackjack 21)
The Radio Shack EC-21 is an arithmetic calculator with 10 digits precision and algebraic logic. It has 6 functions, 23 keys, and an LCD (liquid crystal) display. Note: game
Facts at a glance:
| Feature | Value |
|---|---|
| Type | Arithmetic |
| Functions | 6 |
| Keys | 23 |
| Precision | 10 |
| Logic | Algebraic |
| Display type | LCD |
| Year introduced | 1985 |
Replacements:
If you have a Radio Shack EC-21 that is no longer working, you can consider replacing the calculator with a modern equivalent.
We suggest the following current models as possible replacements: