APF M74 (MARK 74)

Image: Joe Haupt, CC BY-SA 2.0
The APF M74 is an arithmetic calculator with 8 digits precision and algebraic logic. It has 6 functions, 24 keys, and an LED (light-emitting diode) display, typical of calculators of this era. The power source is PP3 9V. The calculator was manufactured in Singapore.

Facts at a glance:

Feature Value
Type: Arithmetic
Functions: 6
Keys: 24
Precision: 8
Logic: Algebraic
Display type: LED
Length: 135mm
Width: 72mm
Thickness: 23mm
Weight: 86g
Power Source: PP3 9V
Country: Singapore
Year introduced: 1979
YearDiscontinued: 1979

See other calculators by APF