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National Semiconductor 750

National Semiconductor 750
Image: Joe Haupt, CC BY-SA 2.0

The National Semiconductor 750 is an arithmetic calculator with 8 digits precision and algebraic logic. It has 4 functions, 17 keys, and an LED (light-emitting diode) display typical of calculators of this era. The power source is PP3 9V.

Facts at a glance:

FeatureValue
TypeArithmetic
Functions4
Keys17
Precision8
LogicAlgebraic
Display typeLED
Length127mm
Width70mm
Thickness24mm
Power SourcePP3 9V
Year introduced1976
Year discontinued1978

Replacements:

If you have a National Semiconductor 750 that is no longer working, you can first try replacing the PP3 9V 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 National Semiconductor