High yield gold trimmings?

I've seen several mentions of people saving the gold contacts from printers, ink cartridges, etc. Here is some gold contacts on various ink cartridges:

http://i163.photobucket.com/albums/t...109_183048.jpg

What about the contacts on cell phone batteries......does anyone mess with these? Do they yeild enough to remove?

http://i163.photobucket.com/albums/t...109_183115.jpg

Here are a couple trimmings from some older batteries:

http://i163.photobucket.com/albums/t...109_183416.jpg


Has anyone had any of these contacts refined? I'm starting to accumulate and am curious to the value. Are these considered high yeild or am I wasting my time? Adam

Here are a couple more examples of what I've been saving.

http://i163.photobucket.com/albums/t...109_183230.jpg
Gold finger trimmings from SD cards.

http://i163.photobucket.com/albums/t...109_183331.jpg
Hard drive gold contacts.

Hoping someone can clue me in on what yeilds to expect on this stuff when I have some refining done. Thanks, Adam

Don't pull the gold contacts off of the printer cartridges. When you do that, the other part of the cartridge is pretty much useless, just turn them in a Staples and get some store credit. I sell my batteries whole without cutting the pins off. Not worth my time. I save the SD cards, there's gold in the chip itself, not just the fingers.

I put some of those printer cart contacts in HCL acid & ate the copper off. That let the gold foil drop off.

The gold that comes off is quite strong, even the little gold lines are strong & hasome 'bounce' to them when I squash them a bit.

The solid gold areas on the mylar after its trimmed will go for around $600 per pound. But all of the traces on the gold plated mylar are gold also so it might be better to sell it intact. Ive sold 1 ounce of solid plated trimmed mylar $50 before. The rest of the stuff is fingers or gold plated contacts goes for around $100 per pound.

Quote:

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Originally Posted by jghilino

The solid gold areas on the mylar after its trimmed will go for around $600 per pound. But all of the traces on the gold plated mylar are gold also so it might be better to sell it intact. Ive sold 1 ounce of solid plated trimmed mylar $50 before. The rest of the stuff is fingers or gold plated contacts goes for around $100 per pound.

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I was curious if you had done anything with the silver mylar out of printers yet?

I am collecting silver mylar right now have about 3 pounds of it and 1/2 pound of gold mylar. If the silver mylar is like silver ram it should go for about the same price as the gold, i have no idea though as i have not sold any of the silver mylar yet.