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Montgomery Ward P10 (DNS-8678A ; Mathbox)

Montgomery Ward P10
Image: Joe Haupt, CC BY-SA 2.0

The Montgomery Ward P10 is an arithmetic calculator with 6 digits precision and algebraic logic. It has 4 functions, 15 keys, and an LED (light-emitting diode) display, typical of calculators of this era. The power source is PP3 9V. Note: Novus 650 RPN

Facts at a glance:

FeatureValue
TypeArithmetic
Functions4
Keys15
Precision6
LogicAlgebraic
Display typeLED
Length127mm
Width70mm
Thickness24mm
Power SourcePP3 9V
Year introduced1974

Replacements:

If you have a Montgomery Ward P10 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 Montgomery Ward