Texas Instruments SR-56 (SR-56 programmable)
The Texas Instruments SR-56 is a programmable calculator with 10 digits precision and algebraic logic. It has 61 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 Italy; Holland; USA.
Facts at a glance:
| Feature | Value |
|---|---|
| Type | Programmable |
| Functions | 61 |
| Keys | 40 |
| Precision | 10 |
| Logic | Algebraic |
| Display type | LED |
| Printer | External |
| Length | 147mm |
| Width | 81mm |
| Thickness | 32mm |
| Power Source | 3xAA sealed |
| Country | Italy; Holland; USA |
| Year introduced | 1976 |
| Year discontinued | 1977 |
Replacements:
If you have a Texas Instruments SR-56 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: