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Vintage Hewlett-Packard HP-33S Scientific Calculator Tested with New Batteries:
$249.89
The calculator is in excellent condition. The case has wear as shown. Original packaging with thick book. Comes with new installed batteries.
This listing is for a rare **open box** HP-33S RPN-Algebraic Scientific Programmable Calculator.
- Perfect operating condition (diagnostic tests good – please see pics)
- Perfect cosmetic condition (please view pics carefully) -- **this is an open box listing because clamshell package needed to be opened to test the calculator**
- New batteries installed.
- This listing includes the HP-33S, original HP-33S case (has wear), manual and original packaging (please see pics)
The 33S is one of my favorites – a very versatile calculator and definitely an innovation for HP! This one allows you to switch between RPN or algebraic entry modes to appeal to more users. Also I love any scientific calculators that have various built-in conversions as this one does.
