Casio JL-20
The Casio JL-20 is an arithmetic calculator with 10 digits precision and algebraic logic. It has 6 functions, 24 keys, and one of the early LCD (liquid crystal) displays which incorporated a yellow filter. The power source is 2x1.5V cell. The calculator was manufactured in Japan.
Facts at a glance:
| Feature | Value |
|---|---|
| Type | Arithmetic |
| Functions | 6 |
| Keys | 24 |
| Precision | 10 |
| Logic | Algebraic |
| Display type | YLCD |
| Length | 161mm |
| Width | 101mm |
| Thickness | 40mm |
| Weight | 181g |
| Power Consumption | 0.000500W |
| Power Source | 2x1.5V cell |
| Country | Japan |
| Year introduced | 1975 |
Replacements:
If you have a Casio JL-20 that is no longer working, you can first try replacing the 2x1.5V cell. 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: