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Summit 777 (Diet Pepsi 777)

The Summit 777 is an arithmetic calculator with algebraic logic. It has 6 functions, 21 keys, and an LED (light-emitting diode) display, typical of calculators of this era. Note: Melcor 747

Facts at a glance:

FeatureValue
TypeArithmetic
Functions6
Keys21
LogicAlgebraic
Display typeLED
Length105mm
Width63mm
Year introduced1974

Replacements:

If you have a Summit 777 that is no longer working, you can consider replacing the calculator with a modern equivalent. We suggest the following current models as possible replacements:

See other calculators by Summit