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Aristo M66S

The Aristo M66S is an arithmetic calculator with 8 digits precision and algebraic logic. It has 11 functions, 25 keys, and a VFD (vacuum fluorescent) display. The power source is 2xAA sealed.

Facts at a glance:

FeatureValue
TypeArithmetic
Functions11
Keys25
Precision8
LogicAlgebraic
Display typeVFD
Length151mm
Width76mm
Thickness18mm
Power Source2xAA sealed
Year introduced1975

Replacements:

If you have an Aristo M66S that is no longer working, you can first try replacing the 2xAA sealed 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 Aristo