Many are surprised, but LEDs contain a small yet valuable amount of gold for recycling. Since these LEDs are mounted on an aluminum base, the copper content in the chips themselves is very low.
DVD player PCBs vary in gold content by year. Pre-2009 boards are most valuable (~200 ppm Au), while post-2010 are usually low-value. SMD ICs add more value than TH components. (2012)
Universal TV mainboard suitable for LCD and plasma televisions. Common PCB with low palladium content, ideal for electronics recycling and material recovery. (2008)