Enhanced HP-41C Message #1 Posted by Juergen (CH) on 23 May 2004, 3:09 p.m.
Recently, I aquired an HP-41C. At first glance, it seemed to be a normal one. But during function testing, I noticed that it had 319 memory registers. I also discovered that it understood the Time Module commands!
Well, I guess you understand that I had to open the calc. And that's what I've found:
Enhanced HP-41C
A thin PCB (green) is connected to the extension port contacts on the 41 PCB. The 4 memory modules are soldered onto the green PCB, near the border of the case so they perfectly fit into the upper part of the case. The time module is also connected to the green PCB by thin wires.
The green PCB is labeled with:
(C) HP CLUB AUSTRIA
VERSION II
BERNYTRONIX
Does anybody know some details about this BERNYTRONIX thing? Or does anybody know of similar HP-41C modifications?
Regards, Juergen
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