HP Forum Archive 16

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unusual HP 41CX - photos & questions Message #1 Posted by netphemera on 25 Dec 2006, 11:17 p.m. I acquired a bunch of HP 41 calculators at an estate sale. The case of one states that it's an HP 41CX, but the insides are very odd. It doesn't match what I've seen for other 41CX, nor any other 41C types. It was probably previously owned by an HP developer or extreme hobbyist. Lots of other stuff in the lot, including an IL DEV module and many parts. Does anyone have any idea about this item. I can forward additional photos or additional information about the lot if anyone's interested. flickr photos of calculator

Re: unusual HP 41CX - photos & questions Message #2 Posted by Tony Duell on 26 Dec 2006, 5:12 a.m., in response to message #1 by netphemera To me it looks like a standard halfnut HP41CX. What's unusual about it?

Re: unusual HP 41CX - photos & questions Message #3 Posted by JLS on 26 Dec 2006, 1:06 p.m., in response to message #1 by netphemera Yes i'd like to know what is in the dev module, Thanks

Re: unusual HP 41CX - photos & questions Message #4 Posted by Artur-Brazil on 26 Dec 2006, 1:20 p.m., in response to message #1 by netphemera Hi, This small pcb is the time and X-Functions module for 41CX. You can add it to another 41CV half-nutt and the time functions will work. With some synthetic code, you will be able to access the X-Functions too, I believe! Good luck with your new toys! Artur

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