Casio CQ-2 (Computer Quartz CQ-2)
The Casio CQ-2 is an arithmetic calculator with 8 digits precision and algebraic logic. It has 6 functions, 23 keys, and a VFD (vacuum fluorescent) display. The power source is AA+2x1.5V mercury cell batteries. The calculator was manufactured in Japan.
Facts at a glance:
| Feature | Value |
|---|---|
| Type | Arithmetic |
| Functions | 6 |
| Keys | 23 |
| Precision | 8 |
| Logic | Algebraic |
| Display type | VFD |
| Length | 67mm |
| Width | 146mm |
| Thickness | 38mm |
| Power Consumption | 0.850000W |
| Power Source | AA+2x1.5V mercury cell |
| Country | Japan |
| Year introduced | 1976 |
| Year discontinued | 1977 |
User Manual
You can download the Casio CQ-2 manual from this external link.
Replacements:
If you have a Casio CQ-2 that is no longer working, you can first try replacing the AA+2x1.5V mercury cell battery. 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: