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Triumph 121C (EC29)

The Triumph 121C is an arithmetic calculator with 12 digits precision and algebraic logic. It has 9 functions, 25 keys, and a VFD (vacuum fluorescent) display. The power source is 4xAA. Note: Adler 121C

Facts at a glance:

FeatureValue
TypeArithmetic
Functions9
Keys25
Precision12
LogicAlgebraic
Display typeVFD
Length150mm
Width87mm
Thickness26mm
Weight165g
Power Source4xAA
Year introduced1975
Year discontinued1975

Replacements:

If you have a Triumph 121C that is no longer working, you can first try replacing the 4xAA 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 Triumph