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Casio CQ-2 (Computer Quartz CQ-2)

Casio CQ-2
Image: wass.net used with permission

The Casio CQ-2 is an arithmetic calculator with 8 digits precision and algebraic logic. It has 6 functions, 23 keys, and a VFD (vacuum fluorescent) display. The power source is AA+2x1.5V mercury cell batteries. The calculator was manufactured in Japan.

Facts at a glance:

FeatureValue
TypeArithmetic
Functions6
Keys23
Precision8
LogicAlgebraic
Display typeVFD
Length67mm
Width146mm
Thickness38mm
Power Consumption0.850000W
Power SourceAA+2x1.5V mercury cell
CountryJapan
Year introduced1976
Year discontinued1977

User Manual

You can download the Casio CQ-2 manual from this external link.

Replacements:

If you have a Casio CQ-2 that is no longer working, you can first try replacing the AA+2x1.5V mercury cell battery. 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