Pye 640 (P-640)
The Pye 640 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 | 146mm |
| Width | 76mm |
| Power Source | Sealed battery pack |
| Year introduced | 1974 |
Replacements:
If you have a Pye 640 that is no longer working, you can consider replacing the calculator with a modern equivalent.
We suggest the following current models as possible replacements: