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Old 29th August 2001, 03:23 AM   #1
Chad is offline Chad  United States
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Noticed people are always asking about heatsinks. Here is a surplus one for $17 US. Too bad the fins don't go the other way but for $17, I guess we can't complain. If it is too tall for your project cut it in two and mount them side by side. Not sure how many they have. If anyone knows of any other good surplus deals please post them.

http://www.allelectronics.com/cgi-bi...-82&type=store
Chad
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Old 29th August 2001, 07:31 PM   #2
The one and only
 
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Good for about 50 watts.
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Old 30th August 2001, 02:21 AM   #3
Chad is offline Chad  United States
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Thanks Nelson, is that 50 watts for a class A -amp or any amp. I'm new at this hobby, I thought a class AB put out less heat allowing for a smaller heatsink.
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Old 30th August 2001, 02:59 PM   #4
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Chad,
You can check out the heatsink thermal rating calculator at this website. I find it useful to have a rough estimation of thermal rating for my heatsinks.

http://sound.westhost.com/download.htm


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Old 30th August 2001, 06:50 PM   #5
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Sorry, I meant 50 watts dissipation with the
fins vertical and 25 deg C. above ambient. This
would typically support a 100 watt AB amp used for
audio or a 20 watt class A amp.
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