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APF MARK 56

The APF MARK 56 is a scientific calculator with algebraic 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
TypeScientific
LogicAlgebraic
Display typeLED
Length152mm
Width76mm
Power SourceSealed battery pack
Year introduced1977

Replacements:

If you have an APF MARK 56 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 APF