Rockwell the 20T
The Rockwell the 20T is an arithmetic calculator with 8 digits precision and algebraic logic. It has 6 functions, 23 keys, and a VFD (vacuum fluorescent) display. The power source is 3xAAA batteries.
Facts at a glance:
| Feature | Value |
|---|---|
| Type | Arithmetic |
| Functions | 6 |
| Keys | 23 |
| Precision | 8 |
| Logic | Algebraic |
| Display type | VFD |
| Length | 138mm |
| Width | 75mm |
| Thickness | 16mm |
| Weight | 92g |
| Power Source | 3xAAA batteries |
| Year introduced | 1977 |
| Year discontinued | 1977 |
Replacements:
If you have a Rockwell the 20T that is no longer working, you can first try replacing the 3xAAA 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: