Keystone SC 656
The Keystone SC 656 is a scientific calculator with algebraic logic. It has 18 functions, 30 keys, and an LED (light-emitting diode) display typical of calculators of this era. The power source is Sealed battery pack.
Facts at a glance:
| Feature | Value |
|---|---|
| Type | Scientific |
| Functions | 18 |
| Keys | 30 |
| Logic | Algebraic |
| Display type | LED |
| Length | 152mm |
| Width | 81mm |
| Power Source | Sealed battery pack |
| Year introduced | 1975 |
Replacements:
If you have a Keystone SC 656 that is no longer working, you can consider replacing the calculator with a modern equivalent.
We suggest the following current model as a replacement: