"Copper, the most popular scrap metal, can be found in many appliances. If you have old television sets, refrigerators, radios, DVD players, and computer monitors, you might want to check them first for copper before throwing them away. A television set alone has a thick copper wire tubing that is very valuable, and which you can sell to honest scrap metal buyers like A&R Metal Recyclers. Average scrap prices for copper vary depending on its type. Clean, bare, bright copper wire will earn you an average of $3.10 per pound, while the rate for copper tubing and flashing is typically $2.87. Insulated copper wire, on the other hand, has an average of $1.00 per pound. Unlike other metals, copper is the kind of metal that can be recycled repeatedly without losing any of its content, which makes copper more valuable than the others."
http://www.arscrapmetalbuyers.com/info-article/earn-extra-dollars-selling-household-metals-scrap-metal-buyers