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I have asked seller how they know that they are rolled gold. And if they can guarantee that. Here is my reply I got:
--------------
You are right they or rather most of them are not marked.
However the quality of the metal work is very good and they
are at the very least gold filled if not rolled gold. I am pretty
sure that the liga is rolled gold but without markings can not
gaurantee it. I hope this helps somewhat. Thank you for the
interest.
---------------
Well it helped me only to say that they may be nice but did not convince me tha they are gold. Ah always read the small print.
 
http://cgi.ebay.com/11-Lbs-Scrap-Memory-RAM-Gold-Metal-Recovery-/250693762471?pt=LH_DefaultDomain_0&hash=item3a5e833da7

Is it 11 pounds or 8 pounds!? I also love the reference to white gold plated fingers :lol:
 
goldenchild said:
http://cgi.ebay.com/11-Lbs-Scrap-Memory-RAM-Gold-Metal-Recovery-/250693762471?pt=LH_DefaultDomain_0&hash=item3a5e833da7

Is it 11 pounds or 8 pounds!? I also love the reference to white gold plated fingers :lol:

As far as I know white fingers on ram are not gold.
Am I wrong?
 
Thats going to be one disappointed buyer. He's over 10$/lb already. Guess I should stop sorting mine before I sell it

-Lance
 
Check out this one,be sure to check his other auctions and the
ones in his feedback.

http://cgi.ebay.com/1-6oz-computer-scrap-ore-buttons-gold-recovery-/220669080956?pt=LH_DefaultDomain_0&hash=item3360e6f57c


Jim
 
goldsilverpro said:
Tin or silver.
I don't keep up with this stuff but, has anyone ever found the fingers on Ram cards to be silver?

Solder coated. Tin Oxidizes and the Oxide is a poor conductor. It does pass current but not well enough for the speeds needed for computers. Silver will Oxidize as well.
 
goldsilverpro said:
I don't keep up with this stuff but, has anyone ever found the fingers on Ram cards to be silver?

Irons said:
goldsilverpro said:
Solder coated. Tin Oxidizes and the Oxide is a poor conductor. It does pass current but not well enough for the speeds needed for computers. Silver will Oxidize as well.

I have processed a few of these with nitric, filtered and added HCL. Sure enough silver chloride was formed.
 
goldenchild said:
goldsilverpro said:
I don't keep up with this stuff but, has anyone ever found the fingers on Ram cards to be silver?

Irons said:
goldsilverpro said:
Solder coated. Tin Oxidizes and the Oxide is a poor conductor. It does pass current but not well enough for the speeds needed for computers. Silver will Oxidize as well.

I have processed a few of these with nitric, filtered and added HCL. Sure enough silver chloride was formed.

Sure it wasn't Lead Chloride?
 
Irons said:
goldenchild said:
goldsilverpro said:
I don't keep up with this stuff but, has anyone ever found the fingers on Ram cards to be silver?

Irons said:
goldsilverpro said:
Solder coated. Tin Oxidizes and the Oxide is a poor conductor. It does pass current but not well enough for the speeds needed for computers. Silver will Oxidize as well.

I have processed a few of these with nitric, filtered and added HCL. Sure enough silver chloride was formed.

Sure it wasn't Lead Chloride?

We are going back and fourth between multiple threads Irons :lol: But I'm not sure. It was such a small amount I didnt even bother verifying. I have some more and will process them. This time I will reduce with sodium hydroxide and sugar to be sure. But just thinking about it... wouldnt silver actually be a good choice for fingers as silver is highly conductive?
 
goldenchild said:
This time I will reduce with sodium hydroxide and sugar to be sure

Cementing to copper is the best way to determine if you have lead or silver in a nitrate solution if you are getting precipitates in a small sample when chlorides are added.

One mans opinion.
 
We are going back and fourth between multiple threads Irons :lol: But I'm not sure. It was such a small amount I didnt even bother verifying. I have some more and will process them. This time I will reduce with sodium hydroxide and sugar to be sure. But just thinking about it... wouldnt silver actually be a good choice for fingers as silver is highly conductive?
I think the main reason that silver isn't used much on board circuitry is because of it's great tendency to migrate through the board material and cause shorting. I've seen excellent photos of this on the internet but can't find them. Here's an article.
http://www.gdsiswitches.com/silver-migration.aspx
 
Some of the old connector cards from IBM coax and twinax printers
had one of two edges to the cards. Either "tin" or "gold" and that's the
way everyone in the industry referred to them. If the printer stopped
communicating, we often took that card out, cleaned the edge and
she started printing again. 8)

The memory in question could be from the same era and they may be tin
unless they were mil spec for some reason?
 
Check this one out. I asked the seller the hard questions and they gave me some BS answers.

http://cgi.ebay.com/Platinum-paladium-gold-and-18-24k-scrap-dental-/130432030568?pt=LH_DefaultDomain_0&hash=item1e5e5ad768
 
goldenchild said:
Check this one out. I asked the seller the hard questions and they gave me some BS answers.

http://cgi.ebay.com/Platinum-paladium-gold-and-18-24k-scrap-dental-/130432030568?pt=LH_DefaultDomain_0&hash=item1e5e5ad768


Then there are some morons who can't figure out the difference between natural gold ORE and gold recovered from scrap circuit boards. Unless maybe he has a circuit board mine in his back yard, like that Chinese landfill there is a picture of on the forum here someplace. And just what "refining" did he do if he extracted 10k gold from the boards and it's still only 10k?

http://cgi.ebay.com/ws/eBayISAPI.dll?ViewItem&item=280560542833

macfixer01
 
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