Here are some photo's of Cu/Al heat sinks I had. I seperated the larger sections of Cu by heating them on a propane "turkey" cooker in a SS basket. All I needed to do was heat them hot enough to melt the solder that holds them together. The ones with the Cu tubing I cut the tubing and sold them as Cu/Al radiators.
Here's a different type.
Here's one that looks like the bottom is Al but the grinder revealed it was Cu.
Best of luck, Mike.
"Profit begins when you buy NOT when you sell." {quote passed down to me from a wise man}
Now go beat the copper out of something, Miked
Metal Recycling Entrepreneur
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Thanks everyone! I have so many of them and its obvious that some are copper and I think it would be worth my time to take the questionable ones to the grinder. It sure would be nice to find some hidden copper in some of this heavy ones. This may be this weekends project. I'll keep you posted.
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