I stumbled upon the electronics scrap world because I was cleaning out a rental property where the man had passed but he was refining paladiumin his basement from old radio components. I didn't at first know what I was throwing away but I lost a lot of good items but now that I'm hooked from seeing his workshop and research ing what he was doing and the potential for a new income source. Possibly a shift from construction to another form of finance. I am confused about the value in certain capacitors I see a lot of aluminum ones and I have the impression that some aluminum electrolytic ones contain tantilum or paladiumin or nobium how do I learn what metals or electrolytes are used in what capacitors and what capacitors are worth the work and I am looking to refine all my metals to they're base separate metals and sell them as ingots or pure weights. Lest I get a good price for depopulated boards