Keystone SC 654
The Keystone SC 654 is an arithmetic calculator with algebraic logic. It has a VFD (vacuum fluorescent) display. The power source is Sealed battery pack.
Facts at a glance:
| Feature | Value |
|---|---|
| Type | Arithmetic |
| Logic | Algebraic |
| Display type | VFD |
| Length | 152mm |
| Width | 81mm |
| Power Source | Sealed battery pack |
| Year introduced | 1975 |
Replacements:
If you have a Keystone SC 654 that is no longer working, you can consider replacing the calculator with a modern equivalent.
We suggest the following current models as possible replacements: