Technico 55SR
The Technico 55SR is a scientific calculator with algebraic logic. It has 23 functions, 25 keys, and a VFD (vacuum fluorescent) display. The power source is 3xAA batteries.
Facts at a glance:
| Feature | Value |
|---|---|
| Type | Scientific |
| Functions | 23 |
| Keys | 25 |
| Logic | Algebraic |
| Display type | VFD |
| Length | 140mm |
| Width | 76mm |
| Power Consumption | 0.450000W |
| Power Source | 3xAA batteries |
| Year introduced | 1976 |
| Year discontinued | 1976 |
Replacements:
If you have a Technico 55SR that is no longer working, you can first try replacing the 3xAA batteries. 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: