Thanks to the miracles of FixThatCalc.com, I am the proud owner of a fully functional HP67, sooned to be joined by an HP97.
I have full card sets for the Surveying Pac and Standard Pac. Several of the cards in the former are toast even after a good cleaning. I attribute read errors to the cards since the HP67 is fully charged and my HP41CV batteries are fresh and I get reading errors consistently in both calculators, and expect the same behaviour in the 97 when it gets here.
I am not surprised by this--I think the Surveying Pac cards were actually used, which means they could have started getting some microscopic damage if they passed thru a drive in days of yore as it was moving toward gummy failure.
I mention this since I would like a full working set of the cards and would like to know if anyone with intact sets can help me out of duplicates of my dead cards? I will in time make an inventory of what I need and post here. If you can help me out I with this I will see what sort of favour in kind I can offer you.
Many thanks!
Les