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National Semiconductor 4615

National Semiconductor 4615
Image: wass.net used with permission

The National Semiconductor 4615 is a programmable calculator with RPN (reverse polish notation) logic. It has an LED (light-emitting diode) display typical of calculators of this era. The power source is Sealed battery pack.

Facts at a glance:

FeatureValue
TypeProgrammable
LogicRPN
Display typeLED
Length150mm
Width75mm
Thickness31mm
Power SourceSealed battery pack

Replacements:

If you have a National Semiconductor 4615 that is no longer working, you can consider replacing the calculator with a modern equivalent.

We suggest the following current model as a replacement:

See other calculators by National Semiconductor