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Femme_physics
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So I've cut the isolated band of my earphones to see what's inside (my cheap earphones quit working). I expected to see copper. And I have. But, there is also a red wire and a blue wire amongst the copper. At they dyed copper, or a different metal?
http://img199.imageshack.us/img199/4003/coppern.jpg
http://img199.imageshack.us/img199/4003/coppern.jpg
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