HP-41CV Fullnut disassembly

[grsbanks]

(08-11-2019 08:26 PM)Sylvain Cote Wrote:  I would suggest to do one modification then test to see if the calculator is still working before doing the second modification.
If something goes bad it will be easier to find the problem.

That's a very valid point, and it's something that I've always stuck to in the 40 or so years I've been dabbling in electronics. This time, however, it's a slightly different game because of the fragility of the Coconut shell. I really don't want to take the thing apart any more than is necessary.

(08-11-2019 08:26 PM)Sylvain Cote Wrote:  The HP-41 is far from being a sealed system, crud can come from the back ports, battery space, etc.

That's a fair point. I was just surprised at just how much there is in this one. I also have a 41C and 41CX from roughly the same period, give or take a couple of years, and they are both absolutely pristine. Maybe I was just lucky with those two.