The other night, while I was turning on my TV with my remote, the click I heard made me realize that this sound was from a relay. (For those of you that don't know what a relay is, it's an electro-mechanical switching component. For the most part, it consists of an electro-magnet and contacts. The electro-magnet is made from wire coiled on a steel core.) Up to now, I have been overlooking relays while harvesting copper bearing components from low grade boards. The pictures below show what a typical relay from these boards looks like. It's not a lot of copper, but if you're pulling this stuff off anyways, you might as well take these too. I figure I should be able to pull 50 or more from my pile of low grade boards that I've already processed. Like they say, better than a poke in the eye with a sharp stick. The contacts also contain silver (for those of you that save this).
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