Eproms in power supplies?

After receiving my first big load of computer scrap i decided to break down the 60 or so power supplies. My yard only pays $0.15 per pound without wire. It's easy to see that there is much more money in a power supply than the $0.15 to $0.45 cents I've been getting. My question is, the things attatched to the aluminum heat sinks, are those what you call eproms? Should I be keeping those separate or just leave them on the board? Haven't dealt with anything like this before this weekend, still gave 25 years or so of learning to go!!!

yes i believe so

Might want to check PTS buyes thread he is buying some dell power supplies for way above scrap value

Those things attached to heatsinks are usually transistors. A good percentage of them is copper.

Those are actually called Mosfets which are a kind of transistor. You should be able to get dirty copper price for them, just cut a corner off of the metal part to show the yard they are copper.

They are indeed Transistors and buyers will not want them mixed with Eproms or buy them at Eprom price.

Power Transistors and Heat sinks

Thanks guys!!!

Hold on to them with pliers wack with a hammer and now they are #2 copper.

the legs are copper also so try to keep those on when you remove them

http://www.scrapmetalforum.com/elect...ification.html

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Originally Posted by 41haikuwarriors

After receiving my first big load of computer scrap i decided to break down the 60 or so power supplies. My yard only pays $0.15 per pound without wire. It's easy to see that there is much more money in a power supply than the $0.15 to $0.45 cents I've been getting. My question is, the things attatched to the aluminum heat sinks, are those what you call eproms? Should I be keeping those separate or just leave them on the board? Haven't dealt with anything like this before this weekend, still gave 25 years or so of learning to go!!!

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41HW - you would think power supplies are worth a whole more but reality says not, due to time required to dismantle. I am getting .25 per pound without wires, some guys are getting .30. The time required to unscrew all those transistors from the heatsink is unbelievable. If you have a good air chisel with a straight 1" bit that is sharpened on one side, you can pop the heatsinks, chokes and transformers off in a few seconds. separate and sell as irony aluminum, irony copper and low or mid board. Gives you something to do when times are slow but won't make you a whole lot more money. Have a great day. TRB

I can only get $0.15 per pound here and I only get $0.25 for the wire. I'm not implying that there is a killing to be made doing it but it does give me something to do in between big loads, and I've gotten pretty quick at tearing them down. Plus I've got 2 kids that love to help so all I really end up doing is cleaning the board, they take care of the rest.

41h i feel your pain. Ps get me .25# with the wire and .20# without. Never really tried to break them down before since I always have a stack of towers or laptops to take apart. If the ps works and are over 400w maybe see if you could sell them to a computer supply or trade one good one for two bad ones. One place I deal with is always looking for the small form ones for the smaller towers.