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APF MARK 22

The APF MARK 22 is a scientific calculator with 8 digits precision and algebraic logic. It has 17 functions, 19 keys, and a VFD (vacuum fluorescent) display. The power source is Sealed battery pack.

Facts at a glance:

FeatureValue
TypeScientific
Functions17
Keys19
Precision8
LogicAlgebraic
Display typeVFD
Length159mm
Width76mm
Power SourceSealed battery pack
Year introduced1977

Replacements:

If you have an APF MARK 22 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