Texas Instruments SR-40 LCD
The Texas Instruments SR-40 LCD is a scientific calculator with 8 digits precision and algebraic logic. It has 29 functions, 40 keys, and an LCD (liquid crystal) display. The power source is 2xAA batteries. The calculator was manufactured in Brazil.
Facts at a glance:
| Feature | Value |
|---|---|
| Type | Scientific |
| Functions | 29 |
| Keys | 40 |
| Precision | 8 |
| Logic | Algebraic |
| Display type | LCD |
| Length | 134mm |
| Width | 75mm |
| Power Source | 2xAA batteries |
| Country | Brazil |
| Year introduced | 1980 |
| Year discontinued | 1983 |
Replacements:
If you have a Texas Instruments SR-40 LCD that is no longer working, you can first try replacing the 2xAA 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: