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Sperry Remington 661-D 661D

The Sperry Remington 661-D 661D is an arithmetic calculator with 6 digits precision and algebraic logic. It has 5 functions, 18 keys and a VFD (vacuum fluorescent) display. The power source is 4xAA batteries. The calculator was manufactured in Japan.

Facts at a glance:

Type Arithmetic
Functions 5
Keys 18
Precision 6
Logic Algebraic
Display type VFD
Display size
Printer
Length 153 mm
Width 80 mm
Thickness 35 mm
Weight 238 g
Power Source 4xAA
Country Japan
Original price unknown
Est. current value unknown
Year introduced 1973
Year discontinued 1973

See other calculators manufactured by Sperry Remington.