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MBO MONARCH I

The MBO MONARCH I is an arithmetic calculator with 8 digits precision and algebraic logic. It has 15 functions, 30 keys, and a VFD (vacuum fluorescent) display. Note: inch/cm conversions

Facts at a glance:

FeatureValue
TypeArithmetic
Functions15
Keys30
Precision8
LogicAlgebraic
Display typeVFD
Year introduced1975

Replacements:

If you have a MBO MONARCH I that is no longer working, you can consider replacing the calculator with a modern equivalent.

We suggest the following current models as possible replacements:

See other calculators by MBO