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APF MARK 23 Electronic Slide Rule Calculator

The APF MARK 23 Electronic Slide Rule Calculator is an arithmetic calculator with 8 digits precision and algebraic logic. It has 9 functions, 20 keys and a VFD (vacuum fluorescent) display. The power source is Sealed battery pack. The calculator was manufactured in Japan.

Facts at a glance:

Type Arithmetic
Functions 9
Keys 20
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 Japan
Original price unknown
Est. current value unknown
Year introduced 1974
Year discontinued 1975

See other calculators manufactured by APF.