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| General Electronics Chat This forum is for general chat about electronics, eg: Dont know what a part does? Dont know how to read a circuit? Want to get an opinion? |
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Thread Tools | Display Modes |
29th October 2007, 07:04 AM
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I kinda was hoping to find something already with a hole in and cut to size ???
pete |
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29th October 2007, 02:34 PM
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Wakefield still sells many heatsinks. www.newark.com has a good search engine for them. I found one that is much bigger than yours and it might be able to hold both your output transistors.
It has a thermal resistance of 2.4 degrees C/W and the transistors have a thermal resistance of 1 degree C/W so with 50W of output power both transistors will dissipate about 40W and their internal temperature will be about 161 degrees C.
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Uncle $crooge |
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30th October 2007, 09:53 PM
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Hey audioguru can you link me to waht you fond on newarks site ?
Also what do u guys think of these if i just drill a hole thru them ? http://www.allelectronics.com/cgi-bi...7%22#34;_.html This place is local to me, so its easier ? pete |
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30th October 2007, 11:02 PM
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Go to www.newark.com and enter Heatsink in the search box.
On the search page highlight a thermal resistance of 2 degrees C/W and highlight the manufacturer Wakefield. Click on Apply and you woll see that heatsink that is much bigger than the tiny ones you found. Click on the link to Wakefield if you want to see all the heatsinks they make. Your new heatsink is too small for the output transistors in a power amplifier.
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Uncle $crooge |
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