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Omron 865R

The Omron 865R is a scientific calculator with algebraic logic. It has a VFD (vacuum fluorescent) display. The power source is 2xAA.

Facts at a glance:

FeatureValue
TypeScientific
LogicAlgebraic
Display typeVFD
Length133mm
Width83mm
Power Source2xAA
Year introduced1976

Replacements:

If you have an Omron 865R 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 model as a replacement:

See other calculators by Omron