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Texas Instruments exactra 20

The Texas Instruments exactra 20 is an arithmetic calculator with 7 digits precision and algebraic logic. It has 4 functions, 18 keys and an LED (light-emitting diode) display, typical of calculators of this era. The power source is 3xAA batteries. The calculator was manufactured in USA.

Facts at a glance:

Type Arithmetic
Functions 4
Keys 18
Precision 7
Logic Algebraic
Display type LED
Display size
Length 130 mm
Width 73 mm
Thickness 33 mm
Weight unknown g
Power Source 3xAA
Country USA
Original price unknown
Est. current value unknown
Year introduced 1974
Year discontinued 1974

See other calculators manufactured by Texas Instruments.