Litronix 2290R (programmable)

The Litronix 2290R is a programmable calculator with 8 digits precision and algebraic logic. It has 5 functions, 25 keys, and an LED (light-emitting diode) display, typical of calculators of this era. The power source is Sealed battery pack.

Facts at a glance:

Feature Value
Type: Programmable
Functions: 5
Keys: 25
Precision: 8
Logic: Algebraic
Display type: LED
Length: 165mm
Width: 81mm
Thickness: 23mm
Power Source: Sealed battery pack
Year introduced: 1975

See other calculators by Litronix