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Elektronika B3-21

The Elektronika B3-21 is a programmable calculator with 8 digits precision and RPN (reverse polish notation) logic. It has an unknown number of functions, 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:

Type Programmable
Functions unknown
Keys 29
Precision 8
Logic RPN
Display type LED
Display size
Length 188 mm
Width 101 mm
Thickness 49 mm
Weight 390 g
Power Source 4x1.5V sealed
Original price unknown
Est. current value unknown
Year introduced 1977
Year discontinued 1979

See other calculators manufactured by Elektronika.