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One of HPs first desktop calculators. More like a computer than calculator. Prgrammable in HPL.
printer works great I had to clean it out as typically have dissolved materials in there which prevent working almost not work great you can see it's producing the right answer I'm just multiplying four to five so the electronics is working great on this the tape drive on this still has a problem inside here there should be a light that's on that shines through the tape in replacing the capstone on here or somehow I got an intermittent connection or something and and so now the light inside doesn't shine through so we time you try to do a any kind of tape operation it'll it'll just give you the error of end of tape that's because that light it's just a loose connection I believe but I don't have time to take it apart and look for it like I say it was working the light was working until I replaced the cap seen
HP-9825B Desktop Calculator
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