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Casio OH-7700G (POWER GRAPHIC)

Casio OH-7700G
Image: Mark Bollman, used with permission

The Casio OH-7700G is a graphing calculator with 10 digits precision and formula input logic. It has 50 keys, and an LCD (liquid crystal) display. The power source is 4x2032 3V cell. The calculator was manufactured in Japan. Note: Overhead Projector version for teaching.

Facts at a glance:

FeatureValue
TypeGraphing
Keys50
Precision10
LogicFormula
Display typeLCD
Display size96
Length173mm
Width81mm
Thickness16mm
Weight179g
Power Consumption0.220000W
Power Source4x2032 3V cell
CountryJapan
Year introduced1991
Year discontinued1993

Replacements:

If you have a Casio OH-7700G that is no longer working, you can first try replacing the 4x2032 3V 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 model as a replacement:

See other calculators by Casio