calculator.org

the calculator home page

Binatone Mastermind (Feb-03)

The Binatone Mastermind is an arithmetic calculator with 8 digits precision and algebraic logic. It has 5 functions, 23 keys, and an LED (light-emitting diode) display, typical of calculators of this era. The power source is PP3 9V. Note: Adman L-0831T

Facts at a glance:

FeatureValue
TypeArithmetic
Functions5
Keys23
Precision8
LogicAlgebraic
Display typeLED
Length127mm
Width68mm
Thickness22mm
Weight76g
Power SourcePP3 9V
Year introduced1976
Year discontinued1977

Replacements:

If you have a Binatone Mastermind that is no longer working, you can first try replacing the PP3 9V 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 Binatone