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Qualitron 1445 Slide Rule

Qualitron 1445 Slide Rule
Image: wass.net used with permission

The Qualitron 1445 Slide Rule is a scientific calculator with 8 digits precision and algebraic logic. It has 20 functions, 26 keys, and a VFD (vacuum fluorescent) display. The power source is 4xAA.

Facts at a glance:

FeatureValue
TypeScientific
Functions20
Keys26
Precision8
LogicAlgebraic
Display typeVFD
Length144mm
Width76mm
Thickness33mm
Power Source4xAA
Year introduced1975

Replacements:

If you have a Qualitron 1445 Slide Rule that is no longer working, you can first try replacing the 4xAA 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 Qualitron