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Olympia CD 90 SIGMA

The Olympia CD 90 SIGMA is a scientific calculator with 8 digits precision and algebraic logic. It has 23 functions, 29 keys, and a VFD (vacuum fluorescent) display. The power source is 3xAA. The calculator was manufactured in Japan.

Facts at a glance:

FeatureValue
TypeScientific
Functions23
Keys29
Precision8
LogicAlgebraic
Display typeVFD
Length149mm
Width88mm
Thickness32mm
Power Consumption0.400000W
Power Source3xAA
CountryJapan
Year introduced1976
Year discontinued1976

Replacements:

If you have an Olympia CD 90 SIGMA 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