calculator.org

the calculator home page

MBO Classic I

The MBO Classic I is an arithmetic calculator with 8 digits precision and algebraic logic. It has 6 functions, 21 keys, and a VFD (vacuum fluorescent) display. The power source is 2xAA batteries.

Facts at a glance:

FeatureValue
TypeArithmetic
Functions6
Keys21
Precision8
LogicAlgebraic
Display typeVFD
Length125mm
Width80mm
Thickness20mm
Power Source2xAA batteries
Year introduced1975

Replacements:

If you have a MBO Classic I that is no longer working, you can first try replacing the 2xAA 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 MBO