calculator.org

the calculator home page

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:

FeatureValue
TypeProgrammable
Keys29
Precision8
LogicRPN
Display typeLED
Length188mm
Width101mm
Thickness49mm
Weight390g
Power Consumption1.000000W
Power Source4x1.5V sealed
Year introduced1977
Year discontinued1979

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:

See other calculators by Elektronika