Hewlett-Packard HP 97S (Topcat RICOCHET)
The Hewlett-Packard HP 97S is a programmable calculator with 12 digits precision and RPN (reverse polish notation) logic. It has 108 functions, 71 keys, and an LED (light-emitting diode) display typical of calculators of this era. The power source is 4x1.2V NiCd battery pack. Note: HP97 with a BCD link in TTL on a 50 pins connector.
Facts at a glance:
| Feature | Value |
|---|---|
| Type | Programmable |
| Functions | 108 |
| Keys | 71 |
| Precision | 12 |
| Logic | RPN |
| Display type | LED |
| Printer | Yes |
| Length | 202mm |
| Width | 228mm |
| Thickness | 64mm |
| Weight | 1134g |
| Power Source | 4x1.2V NiCd battery pack |
| Year introduced | 1977 |
| Year discontinued | 1982 |
Replacements:
If you have a Hewlett-Packard HP 97S that is no longer working, you can consider replacing the calculator with a modern equivalent.
We suggest the following current model as a replacement: