| I took an old audio amplifier apart and sold the transistors on eBay. But I can't sell the heatsinks for $1.oo so I'm giving them away. Just pay the postage. There are 12 of them. They were dissipating heat for 4 150watt power transistors.

Black Anodized Aluminum Heat Sinks, TO-3.
Measuring 7 1/2 x 4 x 1 3/4 inches The metal is 1/8 inch thick. Each one provides 70 square inches of metal. Each Heat Sink has holes for mounting 4 Power Transistors TO-3 sized, holes not threaded. Can be drilled to accept many other devices. These Sinks are used and still have some Heat Sink compound where transistors were mounted.
You can calculate the postage here. My Area Code in Alabama is 35805. If you are out of the USA then use the Pull-Down menu at the top of the page to select your country. Shipping weight for 1 or 2 heatsinks will be 2 pounds.
http://postcalc.usps.gov/ |
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