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MBO Sigma 10

The MBO Sigma 10 is a scientific calculator with 8 digits precision and algebraic logic. It has 23 functions, 25 keys, and a VFD (vacuum fluorescent) display. The power source is PP3 9V.

Facts at a glance:

FeatureValue
TypeScientific
Functions23
Keys25
Precision8
LogicAlgebraic
Display typeVFD
Power SourcePP3 9V
Year introduced1975

Replacements:

If you have a MBO Sigma 10 that is no longer working, you can first try replacing the PP3 9V battery. 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 MBO