Boots 424
The Boots 424 is a scientific calculator with 8 digits precision and algebraic logic. It has 30 functions, 35 keys, and a VFD (vacuum fluorescent) display. The power source is 2xAA batteries. Note: Casio fx-21
Facts at a glance:
Feature | Value |
---|---|
Type | Scientific |
Functions | 30 |
Keys | 35 |
Precision | 8 |
Logic | Algebraic |
Display type | VFD |
Length | 145mm |
Width | 84mm |
Thickness | 25mm |
Power Source | 2xAA batteries |
Year introduced | 1977 |
Year discontinued | 1977 |
Replacements:
If you have a Boots 424 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 model as a replacement: