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Texas Instruments TI-2550 II

Texas Instruments TI-2550 II
Image: Joe Haupt, CC BY-SA 2.0

The Texas Instruments TI-2550 II is an arithmetic calculator with 8 digits precision and algebraic logic. It has 9 functions, 27 keys, and a VFD (vacuum fluorescent) display. The power source is 2xAA sealed. The calculator was manufactured in Italy; USA.

Facts at a glance:

FeatureValue
TypeArithmetic
Functions9
Keys27
Precision8
LogicAlgebraic
Display typeVFD
Length147mm
Width81mm
Thickness32mm
Power Source2xAA sealed
CountryItaly; USA
Year introduced1975
Year discontinued1976

Replacements:

If you have a Texas Instruments TI-2550 II that is no longer working, you can first try replacing the 2xAA sealed batteries. If that doesn't solve the problem, then you can consider replacing the calculator with a modern equivalent. We suggest the following current models as possible replacements:

See other calculators by Texas Instruments