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Calcumatic 840

The Calcumatic 840 is an arithmetic calculator with unknown digits precision and algebraic logic. It has an unknown number of functions, unknown keys and a VFD (vacuum fluorescent) display. The power source is 4xAA batteries.

Facts at a glance:

Type Arithmetic
Functions unknown
Keys unknown
Precision unknown
Logic Algebraic
Display type VFD
Display size
Printer
Length 159 mm
Width 83 mm
Thickness unknown mm
Weight unknown g
Power Source 4xAA
Country
Original price unknown
Est. current value unknown
Year introduced 1974
Year discontinued

See other calculators manufactured by Calcumatic.