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APF MARK 21

The APF MARK 21 is an arithmetic calculator with 8 digits precision and algebraic logic. It has 6 functions, 24 keys and a VFD (vacuum fluorescent) display. The power source is Sealed battery pack.

Facts at a glance:

Type Arithmetic
Functions 6
Keys 24
Precision 8
Logic Algebraic
Display type VFD
Display size
Printer
Length 159 mm
Width 76 mm
Thickness unknown mm
Weight unknown g
Power Source Sealed battery pack
Country
Original price unknown
Est. current value unknown
Year introduced 1976
Year discontinued

See other calculators manufactured by APF.