|HP-67 battery questions|
Message #1 Posted by Thomas Okken on 7 Jan 2011, 8:37 p.m.
I have an HP-67 that I bought on eBay a couple of years ago. All I have is the calculator, the soft case, and quick reference guide; I have no battery pack, no charger, nor any of the other things that came with the calculator originally.
The calculator has been sitting in a drawer ever since I bought it, but now, finally, I'm starting to feel the itch to bring this thing back to life and run some programs on it.
I figure I'll send it to Randy for some general good lovin' once he's ready to accept new jobs, but until then, I would at least like to see if the darn thing even still works.
I figure I can just take three AA batteries, and with some wire and some tape to hook them up to the terminals in the battery compartment, I'll be able to find out if the calculator is still a calculator, so to speak.
Before I do that, though, I think I should ask some of the more experienced people on this forum for advice, specifically: (1) is it OK to power an HP-67 with three NiMH or Alkaline batteries, given that those have a somewhat higher voltage than the NiCd batteries that the calculator was designed for, and (2) which of the terminals in the battery compartment is (+) and which is (-)?
Thank you -- and have a great weekend!