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Brother 508SR (PROCAL 508SR)

The Brother 508SR is a scientific calculator with algebraic logic. It has 20 functions, 26 keys, and a VFD (vacuum fluorescent) display. The power source is 2xAA.

Facts at a glance:

FeatureValue
TypeScientific
Functions20
Keys26
LogicAlgebraic
Display typeVFD
Power Source2xAA
Year introduced1976

Replacements:

If you have a Brother 508SR 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 Brother