The TOHO ROGER F-5 is an arithmetic calculator with algebraic logic. It has 22 keys, and a VFD (vacuum fluorescent) display. The power source is 2xAA.

Facts at a glance:

Feature Value
Type: Arithmetic
Keys: 22
Logic: Algebraic
Display type: VFD
Length: 137mm
Width: 78mm
Thickness: 24mm
Power Source: 2xAA
Year introduced: 1976
YearDiscontinued: 1976

See other calculators by TOHO