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Technico 55SR

The Technico 55SR is a scientific calculator with algebraic logic. It has 23 functions, 25 keys, and a VFD (vacuum fluorescent) display. The power source is 3xAA.

Facts at a glance:

FeatureValue
TypeScientific
Functions23
Keys25
LogicAlgebraic
Display typeVFD
Length140mm
Width76mm
Power Consumption0.450000W
Power Source3xAA
Year introduced1976
Year discontinued1976

Replacements:

If you have a Technico 55SR that is no longer working, you can first try replacing the 3xAA 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 Technico