Technico 77SR
The Technico 77SR is a scientific calculator with 8 digits precision and algebraic logic. It has 26 functions, 25 keys, and an LED (light-emitting diode) display typical of calculators of this era. The power source is 3xAA batteries.
Facts at a glance:
| Feature | Value |
|---|---|
| Type | Scientific |
| Functions | 26 |
| Keys | 25 |
| Precision | 8 |
| Logic | Algebraic |
| Display type | LED |
| Power Consumption | 0.450000W |
| Power Source | 3xAA batteries |
| Year introduced | 1977 |
| Year discontinued | 1977 |
Replacements:
If you have a Technico 77SR 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: