Texas Instruments SR-51A
The Texas Instruments SR-51A is a scientific calculator with 10 digits precision and algebraic logic. It has 42 functions, 40 keys, and an LED (light-emitting diode) display typical of calculators of this era. The power source is 3xAA sealed. The calculator was manufactured in Holland; USA.
Facts at a glance:
| Feature | Value |
|---|---|
| Type | Scientific |
| Functions | 42 |
| Keys | 40 |
| Precision | 10 |
| Logic | Algebraic |
| Display type | LED |
| Printer | Yes |
| Length | 147mm |
| Width | 81mm |
| Thickness | 32mm |
| Power Source | 3xAA sealed |
| Country | Holland; USA |
| Year introduced | 1975 |
| Year discontinued | 1976 |
Replacements:
If you have a Texas Instruments SR-51A that is no longer working, you can first try replacing the 3xAA sealed. 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: