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Sinclair President

Sinclair President
Image: Wikimedia CC BY-SA 3.0

The Sinclair President is an arithmetic calculator with 8 digits precision and algebraic logic. It has 13 functions, 33 keys, and a VFD (vacuum fluorescent) display. The power source is 2xAA.

Facts at a glance:

FeatureValue
TypeArithmetic
Functions13
Keys33
Precision8
LogicAlgebraic
Display typeVFD
Length88mm
Width156mm
Thickness28mm
Power Source2xAA
Year introduced1978

Replacements:

If you have a Sinclair President that is no longer working, you can first try replacing the 2xAA 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 Sinclair