Sorry, I should have taken some pictures of the switches before I recovered the contacts, for context.
I can often bend the copper to prize the contacts free without touching them.
Sometimes I use a wire cutter and can clip the metal enough to break out. Also have a dremel if needed.
Not really a full time scrapper. Just wanting to try some recovery myself.
As these contacts likely contain 12% Cadmium (nasty stuff), I'm unsure of the exact recovery method I will use.
I'm thinking of having some kind of closed retort similar to a mercury retort where the cadmium can boil off, then cool into solid.
But that will require a lot of testing and planning as these things can explode.
(apparently we are not meant to discuss smelting on these forums).
In any case my experiments will be on a microscale, and take every precaution.
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