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Unitrex 800KD

The Unitrex 800KD is an arithmetic calculator with algebraic logic. It has 4 functions, and a VFD (vacuum fluorescent) display. The power source is 4xAA batteries.

Facts at a glance:

FeatureValue
TypeArithmetic
Functions4
LogicAlgebraic
Display typeVFD
Length152mm
Width165mm
Power Source4xAA batteries
Year introduced1975

Replacements:

If you have a Unitrex 800KD that is no longer working, you can first try replacing the 4xAA batteries. If that doesn't solve the problem, then you can consider replacing the calculator with a modern equivalent.

We suggest the following current models as possible replacements:

See other calculators by Unitrex