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Texas Instruments TI-1798

The Texas Instruments TI-1798 is an arithmetic calculator with 10 digits precision and algebraic logic. It has 6 functions, 26 keys, and an LCD (liquid crystal) display. The power source is LR41 (1.5Vcell) + LR1130 (3Vcell). The calculator was manufactured in Taiwan.

Facts at a glance:

FeatureValue
TypeArithmetic
Functions6
Keys26
Precision10
LogicAlgebraic
Display typeLCD
Length135mm
Width107mm
Thickness30mm
Power SourceLR41 (1.5Vcell) + LR1130 (3Vcell)
CountryTaiwan
Year introduced1985
Year discontinued1990

Replacements:

If you have a Texas Instruments TI-1798 that is no longer working, you can first try replacing the LR41 (1.5Vcell) + LR1130 (3Vcell) 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