Casio 121-A (121A)
The Casio 121-A is an arithmetic calculator with 12 digits precision and algebraic logic. It has 4 functions, 15 keys, and a display using Nixie tubes. The power source is Solar. Note: Desktop model.
Facts at a glance:
| Feature | Value |
|---|---|
| Type | Arithmetic |
| Functions | 4 |
| Keys | 15 |
| Precision | 12 |
| Logic | Algebraic |
| Display type | Nixie |
| Length | 127mm |
| Width | 330mm |
| Thickness | 102mm |
| Power Source | Solar |
| Year introduced | 1970 |
| Year discontinued | 1971 |
Replacements:
If you have a Casio 121-A that is no longer working, you can consider replacing the calculator with a modern equivalent.
We suggest the following current models as possible replacements: