Quoted from schudel5:As a collector of RPN HP calculators as well, I had to dump that hobby when they remade the HP15C a few years ago. What a piece of crap it was. Now pinballs...
I collect HP 12Cs too. I have 5 made in the USA. One of them has a display that is leaking LCD around the edges. Is there a way to change out the display. Bye the way, reverse polish notation is the best. I can't use a regular calculator.
Thanks