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post #16 of Old 07-13-2007
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Originally Posted by SEMIJim
I've even still got my old HP 15C calculator. (Good ol' RPN. Can't beat it ) Batteries are dead, but that should be no problem.
Old calculator, eh? I've got one of these:

I was able to get the almanac to work until just three weeks ago. It's still a great astro calculator, and it must have been a huge time saver 25 years ago.

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