calculator.org

the calculator home page

Serd 21PD-N

The Serd 21PD-N is an arithmetic calculator with 9 digits precision and algebraic logic. It has 7 functions, 27 keys, and a VFD (vacuum fluorescent) display. Note: Elektronika MK-40

Facts at a glance:

FeatureValue
TypeArithmetic
Functions7
Keys27
Precision9
LogicAlgebraic
Display typeVFD
PrinterYes
Length275mm
Width90mm
Thickness80mm
Year introduced1982

Replacements:

If you have a Serd 21PD-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 Serd