Texas Instruments SR-51

The Texas Instruments SR-51 is a scientific calculator with 10 digits precision and algebraic logic. It has 42 functions, 40 keys, and an LED (light-emitting diode) display, typical of calculators of this era. The power source is 3xAA sealed. The calculator was manufactured in USA.

Facts at a glance:

Feature Value
Type: Scientific
Functions: 42
Keys: 40
Precision: 10
Logic: Algebraic
Display type: LED
Length: 145mm
Width: 80mm
Thickness: 33mm
Power Source: 3xAA sealed
Country: USA
Year introduced: 1975
YearDiscontinued: 1975

See other calculators by Texas Instruments