What would you do with an 100lb heat-sink?

One may consider a total reverse of the unit. It may heat an area or the office if it is connected to a source and a blower is added. McCane Ask me again tell you the same McCane Thanks for the post

Find out from a metallurgy lab the make up of the aluminum, get a printed report, have it notarized, find out what good aluminum is selling for. Then call machine shops to see if they're interested in it's purchase. There may be other details I'm not mentioning here, but you get the idea.

Actually, if he won the bid and had only a fraction of the actual expense of a new unit, I would actually put down the measurements and offer it up for sale with the proper dimensions, including the weight, and recoupe the money plus some. There are several companies here in our country who would rather save a buck then put out the full cost for a new unit. And there are four groups that I know of who deal in high-tech equipment as a brokerage in dealing with finding takers of others used equipment. So before one goes and cashes in on the actual wieght of the block, I would sale it for what it is worth. Food for thought.

HS's that big usually have to disapate a LOT of heat. Railroads use equipment known as "dynamic breaks" to slow trains without using breaks. If there is a local railroad, ask them if they would like to buy it for $5. They probably will; if not, maybe a local factory with "big power" equipment will buy it.

He are the latest prices for aluminum, 07/03/06. Sell it or if your like me, 15 years from now you'll still have the thing and wondering what can I make out of this???? USD/LB Cash Aluminum 1.1569 Alum Alloy 1.0705

It looks to me to be part of an SCR controler. These are used to control heaters or for soft starts on motors.