Radio Shack EC-223 (CHRONOMATH)
The Radio Shack EC-223 is an arithmetic calculator with 8 digits precision and algebraic logic. It has 4 functions, 23 keys, and a VFD (vacuum fluorescent) display. The power source is AA+2x1.5V mercury cell batteries. Note: Casio CQ-1
Facts at a glance:
| Feature | Value |
|---|---|
| Type | Arithmetic |
| Functions | 4 |
| Keys | 23 |
| Precision | 8 |
| Logic | Algebraic |
| Display type | VFD |
| Length | 64mm |
| Width | 144mm |
| Thickness | 32mm |
| Weight | 124g |
| Power Consumption | 0.150000W |
| Power Source | AA+2x1.5V mercury cell |
| Year introduced | 1975 |
| Year discontinued | 1977 |
Replacements:
If you have a Radio Shack EC-223 that is no longer working, you can first try replacing the AA+2x1.5V mercury 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: