Ah... Great News!!! Message #10 Posted by Michael Meyer on 3 May 2010, 9:30 p.m., in response to message #9 by J Grim
The HP-25 you sent is, indeed, a pretty specimen. There was corrosion on both contacts, but the circuit board is remarkably and unusually clean. The keyboard is perfect. The display is the older type with squarer numbers and a "regular" decimal point, which I prefer.
Some cleaning with a dremel brush and re-soldering of the contacts, and your machine is alive-- running well and programming. (Sometimes the RAM is shot and they won't program). I polished it up and removed some tape residue, and it looks great.
I've put lithium cells in, and I, personally, would recommend never using the wall charger.
Another beautiful HP-25 is alive. I will contact you by e-mail. Now... let's see if we can get that 25C to work!
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