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Helec GT 535 (tip-in)

The Helec GT 535 is an arithmetic calculator with algebraic logic. It has 5 functions, 19 keys, and an LED (light-emitting diode) display, typical of calculators of this era. The power source is 5xAA.

Facts at a glance:

FeatureValue
TypeArithmetic
Functions5
Keys19
LogicAlgebraic
Display typeLED
Power Source5xAA
Year introduced1975

Replacements:

If you have a Helec GT 535 that is no longer working, you can first try replacing the 5xAA 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 Helec