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Casio LC-821

The Casio LC-821 is an arithmetic calculator with 8 digits precision and algebraic logic. It has 6 functions, 23 keys, and one of the early LCD (liquid crystal) displays which incorporated a yellow filter. The power source is 3x1.5V cell. The calculator was manufactured in Japan.

Facts at a glance:

FeatureValue
TypeArithmetic
Functions6
Keys23
Precision8
LogicAlgebraic
Display typeYLCD
Length110mm
Width62mm
Thickness7mm
Weight59g
Power Consumption0.001200W
Power Source3x1.5V cell
CountryJapan
Year introduced1977
Year discontinued1977

Replacements:

If you have a Casio LC-821 that is no longer working, you can first try replacing the 3x1.5V cell 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 Casio