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Hewlett-Packard HP 33E (Spice/Spike SAGE)

Hewlett-Packard HP 33E
Image: Joe Haupt, CC BY-SA 2.0

The Hewlett-Packard HP 33E is a programmable calculator with 10 digits precision and algebraic logic. It has 78 functions, 30 keys, and an LED (light-emitting diode) display, typical of calculators of this era. The power source is 2xAA.

Facts at a glance:

FeatureValue
TypeProgrammable
Functions78
Keys30
Precision10
LogicAlgebraic
Display typeLED
Length130mm
Width70mm
Thickness30mm
Weight210g
Power Source2xAA
Year introduced1978
Year discontinued1981

Diagnostics

Note that diagnostic tests generally delete any data on the calculator. Be sure to back up any important information held in the calculator before running these tests.

Press STO then ENTER - if self-test is okay it will turn on all display elements

Replacements:

If you have a Hewlett-Packard HP 33E 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 model as a replacement:

See other calculators by Hewlett-Packard