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Texas Instruments TI-2550 III

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

The Texas Instruments TI-2550 III is an arithmetic calculator with 8 digits precision and algebraic logic. It has 10 functions, 28 keys, and a VFD (vacuum fluorescent) display. The power source is AA batteries. The calculator was manufactured in Italy; USA.

Facts at a glance:

FeatureValue
TypeArithmetic
Functions10
Keys28
Precision8
LogicAlgebraic
Display typeVFD
Length147mm
Width81mm
Thickness32mm
Power Consumption0.170000W
Power SourceAA
CountryItaly; USA
Year introduced1976
Year discontinued1976

Replacements:

If you have a Texas Instruments TI-2550 III that is no longer working, you can first try replacing the AA battery. 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