Commodore 9R-31
The Commodore 9R-31 is an arithmetic calculator with 8 digits precision and algebraic logic. It has 13 functions, 31 keys, and a VFD (vacuum fluorescent) display. The power source is Sealed battery pack.
Facts at a glance:
| Feature | Value |
|---|---|
| Type | Arithmetic |
| Functions | 13 |
| Keys | 31 |
| Precision | 8 |
| Logic | Algebraic |
| Display type | VFD |
| Length | 140mm |
| Width | 76mm |
| Power Source | Sealed battery pack |
| Year introduced | 1975 |
Replacements:
If you have a Commodore 9R-31 that is no longer working, you can consider replacing the calculator with a modern equivalent.
We suggest the following current models as possible replacements: