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Old 11th January 2010, 06:36 PM   #1
lgreen is offline lgreen  United States
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Default Big Heatsinks for sale

Looking foward over my planned projects for the next 2 years I see that I have a few extra heatsinks that I will not be using. So if you need large heatsinks, and I know they are tough to find, perhaps you could use one of these? I've got 3 sets of sinks for sale. I have no idea how much I paid for any of these and no idea how to price them. I did a quick search and saw that a very big unfinished heatsink is about $45 per foot so I priced them to be about half of this give or take and added a little for shipping.

These are for sale in USA only due to weight.

Set #1 is a very nice pair of sinks a foot long and 6" wide. Nice because the fins will be vertical in a standard layout. Looks like a Conrad type heatsink but I have no idea if it is or not. $65 for the PAIR includes shipping to Cont. USA. I have only one pair.

Images
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Click the image to open in full size.

Set #2 is pretty nice too. These are a foot long and 6" wide. The fins of these go along the length and the backplate is not as thick as in the first set. The fins are also not as thick and if you look carefully you see that on two of these one of the outermost fins is slightly bent. Price $50 per PAIR includes shipping to Cont. USA. I have two pairs, if you want all four no problem, price is $70 incl shipping.

Click the image to open in full size.

Click the image to open in full size.

Set #3 is a super humungus massive heat tunnel that I got at the surplus store. I bought one for my Krell Clone and liked it so much that I went back and got another one. Put a fan at one or both ends and there is almost no limit to how much heat this will dissipate. And if you are thermally bold you do have the (unwise) option to neglect to use thermal isolators on your transistors because each of the 4 sections is electrically isolated from the others. And if you look closesly certain sections within the section are also isolated. If you are going to go with a "live" heatsink you of course need to be very careful on how every screw and nut and bolt is installed. Not recommended but the option is there. There are many holes predrilled for TO-3 transistors as well.

I used 3 sections of the 4 for my Krell clone, and used some other parts for the LM4780 chipamp. For sale here is the full heat tunnel (everything you see) and including 2 extra (not so little) pieces.

price is $50 including shipping to USA.

Click the image to open in full size.

Click the image to open in full size.

Set #4 is free to whoever wants it and buys any of the above. Free to the first person as there is only one of these. Its a single long heavy sink.
Click the image to open in full size..

If you have any questions just ask.
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Last edited by lgreen; 11th January 2010 at 06:38 PM.
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Old 11th January 2010, 06:41 PM   #2
ra7 is offline ra7  United States
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email sent.

Interested in set 1 and 3.
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Old 11th January 2010, 08:19 PM   #3
lgreen is offline lgreen  United States
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Quote:
Originally Posted by ra7 View Post
email sent.

Interested in set 1 and 3.
Excellent (email received).

Set #2 still available (both pairs) and freebie #4 can be included with one of them.
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Last edited by lgreen; 11th January 2010 at 08:21 PM.
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Old 20th January 2010, 08:42 PM   #4
lgreen is offline lgreen  United States
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All heat sinks are sold.
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