Originally Posted by
mike1
i just got some heat sinks from a projection tv it was a 03 and it just feels like there are very lite why is this less aluminum used in them? i took a computer tower and got a big heat sink and it was heavy the computer was old though does that make a difference? i got some i and e transformers and was wandering how you guys deal with them? i sometimes cut the copper side and just pound out the other end like i do with electric motors but you loose some of the copper in doing so. they are very hard to pull out sometimes but you get more for the copper vs just leaving them in its my opinion anyway. i would also like to note that the yard i go to says hair wire is #3 copper i assume hair wire is the stuff you get off the plastic boxes with the small spools in them on boards right? is there anywhere else you guys have found hair wire?
From one Mike to another have you ever noticed how easy it is to read some of the posts here on the forum? If you think about it the ones with breaks in the text similar to paragraphs are easier to follow.
To answer why some heat sinks are thin and light or heavy and thick is because of the application. The folks who go to college to get their engineering degrees are the ones who figure that out.
On to the very thin copper wire (hair wire)my advise is don't worry about it. Find better ways to spend your time finding more scrap. The reason that the hair wire is worth less is the yard can pay what they want. I suspect that if the yard sends is a quantity of copper that has a high percentage of the hair wire they would receive a lower price from their buyer.
Consider went the copper wire is heated to melt it the hair wire will likely oxidize or in some other chemical reaction get lost in the process. I hope you enjoy the breaks in the text as much as I did putting them in. 73, Mike
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