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Olympia CD 91

The Olympia CD 91 is a scientific calculator with 8 digits precision and algebraic logic. It has 23 functions, 32 keys, and a VFD (vacuum fluorescent) display. The power source is 3xAA.

Facts at a glance:

FeatureValue
TypeScientific
Functions23
Keys32
Precision8
LogicAlgebraic
Display typeVFD
Length145mm
Width86mm
Thickness29mm
Power Source3xAA
Year introduced1976

Replacements:

If you have an Olympia CD 91 that is no longer working, you can first try replacing the 3xAA batteries. If that doesn't solve the problem, then you can consider replacing the calculator with a modern equivalent. We suggest the following current model as a replacement:

See other calculators by Olympia