SapunovDmitry
Well-known member
Guys, can anyone tell the average content of silver on the motherboeard and a TVboard? Maybe some experience you had dealing with TV boards?
SapunovDmitry said:Well.... today i've used AR,urea and SMB method for my 2 old motherboards( i've cut all gold containing parts(thanks to Steve.He used a fan and so did i,but for pins,not for CPU). I didn't touch CPU's, so it was only the stuff from motherboards (Lan ,USB , sound, PCI, hard drives and memory slots on the motherboard). The whole scrap i've got, weighted 46,2 gramms. Afterall i got powder, that weighted something between 0,1 and 0,2 gramms (I can't say more precise cause i haven't got good scales at home.I will weight it tomorrow in the lab). Taking the best result of 0,2 gramms and dividing it by 46,5 we have about 0,43%. Maybe i can get 0,1-0,3 gramms more from CPU's. But it was a result from two motherboards. It doesn't look like three ounces(Maybe i've lost almost everything?) even if i get 10 times more silver than gold. Or all silver is in the monitor and the keyboard?
calgoldrecyclers said:as far as t.v. boards, they will contain poly chlorinated biphenyl capicitors (PCB's) and very harmful to your health. stay away from them. PCB is a very toxic oil used in the capacitors to keep them cool.
patnor1011 said:few very old pcb and link to page about them.
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