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Faber-Castell TR1 N (TR1N)

The Faber-Castell TR1 N is an arithmetic calculator with 8 digits precision and algebraic logic. It has 12 functions, 25 keys, and an LED (light-emitting diode) display, typical of calculators of this era. Note: Combination slide rule and calculator.

Facts at a glance:

FeatureValue
TypeArithmetic
Functions12
Keys25
Precision8
LogicAlgebraic
Display typeLED
Length58mm
Width172mm
Thickness15mm
Year introduced1975

Replacements:

If you have a Faber-Castell TR1 N 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 Faber-Castell