Reviews and Problems with HP 33s Scientific Calculator
Showing 1-10 of 219
Thomas W. Jones, Amazon
6 days ago
Summary: I have used HP calculators since the HP35 was introduced in the 1970s. I have continued to use them primarily because they have retained the RPN logic option. However, their quality control on the HP33s seems to be very poor. I bought an HP33s about a year ago. It was OK until a month ago, when it began to spontaneously shut off after a few key strokes. Nothing seemed to solve the problem, so I bought another here as a replacement. It was DOA.
Summary: I bought the first HP RPN calculator produced as soon as came onto the market - it's power, and efficiency of key strokes to get an answer to any mathematical/structural analysis problem was immediately obvious. I have bought numerous models of varying complexity since that time, and settled on the 32s as the most efficient for my requirements.
Summary: Bought this to replace a HP 33S that I had worn out, Some of the buttons had broken free of their pivots & were floating around under the faceplate. Totally happy with the new one. Glad I was able to find a direct replacement. Some of the newer HP calculators have changes that I don't really care for.