Elektronika B3-21
The Elektronika B3-21 is a programmable calculator with 8 digits precision and RPN (reverse polish notation) logic. It has 29 keys, and an LED (light-emitting diode) display typical of calculators of this era. The power source is 4x1.5V sealed.
Facts at a glance:
| Feature | Value |
|---|---|
| Type | Programmable |
| Keys | 29 |
| Precision | 8 |
| Logic | RPN |
| Display type | LED |
| Length | 188mm |
| Width | 101mm |
| Thickness | 49mm |
| Weight | 390g |
| Power Consumption | 1.000000W |
| Power Source | 4x1.5V sealed |
| Year introduced | 1977 |
| Year discontinued | 1979 |
Replacements:
If you have an Elektronika B3-21 that is no longer working, you can consider replacing the calculator with a modern equivalent.
We suggest the following current model as a replacement: