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: 1.000W
Power Source: 4x1.5V sealed
Year introduced: 1977
YearDiscontinued: 1979

See other calculators by Elektronika