Commodore SR4120D (4120R)
The Commodore SR4120D is a scientific calculator with 8 digits precision and algebraic logic. It has 30 functions, 48 keys, and an LED (light-emitting diode) display typical of calculators of this era. The power source is PP3 9V battery. The calculator was manufactured in England.
Facts at a glance:
| Feature | Value |
|---|---|
| Type | Scientific |
| Functions | 30 |
| Keys | 48 |
| Precision | 8 |
| Logic | Algebraic |
| Display type | LED |
| Length | 150mm |
| Width | 80mm |
| Thickness | 40mm |
| Weight | 152g |
| Power Source | PP3 9V battery |
| Country | England |
| Year introduced | 1977 |
| Year discontinued | 1978 |
Replacements:
If you have a Commodore SR4120D that is no longer working, you can first try replacing the PP3 9V battery. 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: