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APF MARK 66r

The APF MARK 66r is an arithmetic calculator with 8 digits precision and algebraic logic. It has 7 functions, 29 keys, and a VFD (vacuum fluorescent) display. The power source is Sealed battery pack.

Facts at a glance:

FeatureValue
TypeArithmetic
Functions7
Keys29
Precision8
LogicAlgebraic
Display typeVFD
Length127mm
Width70mm
Power SourceSealed battery pack
Year introduced1977

Replacements:

If you have an APF MARK 66r that is no longer working, you can consider replacing the calculator with a modern equivalent. We suggest the following current models as possible replacements:

See other calculators by APF