Penney memo 855

The Penney memo 855 is an arithmetic calculator with 8 digits precision and algebraic logic. It has 5 functions, 20 keys, and an LED (light-emitting diode) display, typical of calculators of this era. The power source is PP3 9V.

Facts at a glance:

Feature Value
Type: Arithmetic
Functions: 5
Keys: 20
Precision: 8
Logic: Algebraic
Display type: LED
Length: 119mm
Width: 73mm
Thickness: 23mm
Power Consumption: 0.200W
Power Source: PP3 9V
Year introduced: 1974

See other calculators by Penney