Enterprex SR-55 (Jr. Sliderule and Electric Sliderule)
The Enterprex SR-55 is an arithmetic calculator with algebraic logic. It has 12 functions, 30 keys, and a VFD (vacuum fluorescent) display. The power source is 2xAA.
Facts at a glance:
| Feature | Value |
|---|---|
| Type | Arithmetic |
| Functions | 12 |
| Keys | 30 |
| Logic | Algebraic |
| Display type | VFD |
| Length | 146mm |
| Width | 76mm |
| Power Source | 2xAA |
| Year introduced | 1975 |
Replacements:
If you have an Enterprex SR-55 that is no longer working, you can first try replacing the 2xAA batteries. If that doesn't solve the problem, then you can consider replacing the calculator with a modern equivalent.
We suggest the following current models as possible replacements: