APF MARK 50 (Scientific Calculator)

APF MARK 50
Image: Joe Haupt, CC BY-SA 2.0
The APF MARK 50 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 PP3 9V. The calculator was manufactured in Japan. Note: Montgomery Ward P330

Facts at a glance:

Feature Value
Type: Scientific
Functions: 17
Keys: 19
Precision: 8
Logic: Algebraic
Display type: VFD
Length: 140mm
Width: 76mm
Thickness: 27mm
Weight: 165g
Power Source: PP3 9V
Country: Japan
Year introduced: 1975

See other calculators by APF