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She wanted to know why I would have a calculator over my computer, Android, or iPhone. I tried to show her tic-tac-toe on the 67 and she said it was the geekiest thing she has ever seen and refused to watch the complete demo. My wife doesn't understand why I'm obsessed lately with these calculators. I read the entire 380 page 35s manual and I'm working on the 50g manual. ![]() I'm back in school and was using my 10 year old TI-83SE, but was looking for a replacement. She says it's old! I've always loved the way RPN worked on the 12C and the 67 sparked my interest again. I've had an HP12C for over a decade and she hates it and refuses to use it (even gets mad if it's the only calculator she can find). Thanks for all the advice it turned out to be the switch alignment and a bad card, not the caps that I swapped out. So, I finally have the HP-67 a co-worker gave me working perfectly. ![]() Message #1 Posted by Matthew Richards on, 1:14 a.m. How would you respond? The Museum of HP Calculators
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