GREAT new heatsink idea!

JCoffey · 30th December 2003, 06:31 PM

OK, since at work we've been pulling old PII 400 mhz computers, I desided to pull a couple of the CPU heatinks for use with my gainclone. Well, in tearing apart a PII processor, low and behold the aluminum plate in it as small posts, and chip clamps for holding it together. That means, a simple PROVEN method of mounting the chips, that, if you have access to, is almost nothnig in cost, (or in my case free!) I'll be snapping a couple pics tonight and posting them so you can see what I'm refering to.

subwo1 · 30th December 2003, 06:45 PM

The heatsinks like those also have more surface area for cooling per unit volume and, are cheap.

I find them excellent for mounting many non-through-hole devices that need cooling.

lgreen · 31st December 2003, 03:38 AM

That's a good idea, but when firing up my gainclone today (not heatsunk yet), it got super hot during the max power testing. I think I got 25V p-p into 5 ohms with an LM3886. (My scope is out of cal and I only did it quickly)

Good thing I'm going to heatsink these puppies. These are sweet heatsinks for a gainclone, and only cost $2.98, and are what I bought and are what I am going to use.

See:
http://sales.goldmine-elec.com/prodinfo.asp?prodid=3547

Quote:
Super Large Heat Sink - G2209
Black anodized aluminum heat sink type HS10198 measures 4 7/8"L x 2 3/16"W x 1 1/4"Tall. Features 4 mounting holes and a large quantity of fins for efficient cooling.

I bought 2, these are nice, look new. The only problem is that they have 2 little pegs on the flat side that you need to avoid or smooth out.

hacknet · 31st December 2003, 11:16 AM

these heatsinks have a hell of a high resonance...

i don`t know about you but i find that heatsink resonance plays a big part...

JCoffey · 31st December 2003, 02:02 PM

Well, thats exactly what I'm using. Yes they have those two little pegs, but those are what centers the PII processor to it. and thats why if you can get your hands on an old CPU, and pull it apart, you have an aluminum plate with spring clips for securing the chip to the heatsink with.

roborg · 31st December 2003, 02:50 PM

I use this heatsinks in 3 GC's and never noticed a negative effect caused by possible resonance. But if there is any this could be a solution:

AJ Bertelson · 31st December 2003, 03:50 PM

thanks for the link I have been looking for a spot to buy these

30th December 2003, 06:31 PM	#1
JCoffey diyAudio Member Join Date: May 2003 Location: Atlanta, GA	GREAT new heatsink idea! OK, since at work we've been pulling old PII 400 mhz computers, I desided to pull a couple of the CPU heatinks for use with my gainclone. Well, in tearing apart a PII processor, low and behold the aluminum plate in it as small posts, and chip clamps for holding it together. That means, a simple PROVEN method of mounting the chips, that, if you have access to, is almost nothnig in cost, (or in my case free!) I'll be snapping a couple pics tonight and posting them so you can see what I'm refering to.

30th December 2003, 06:45 PM	#2
subwo1 diyAudio Member Join Date: Jan 2002 Location: North American Continent	The heatsinks like those also have more surface area for cooling per unit volume and, are cheap. I find them excellent for mounting many non-through-hole devices that need cooling. __________________ USMPS http://groups.yahoo.com/group/switchmode/

31st December 2003, 03:38 AM	#3
lgreen diyAudio Member Join Date: May 2003 Location: San Diego, USA	What about these? That's a good idea, but when firing up my gainclone today (not heatsunk yet), it got super hot during the max power testing. I think I got 25V p-p into 5 ohms with an LM3886. (My scope is out of cal and I only did it quickly) Good thing I'm going to heatsink these puppies. These are sweet heatsinks for a gainclone, and only cost $2.98, and are what I bought and are what I am going to use. See: http://sales.goldmine-elec.com/prodinfo.asp?prodid=3547 Quote: Super Large Heat Sink - G2209 Black anodized aluminum heat sink type HS10198 measures 4 7/8"L x 2 3/16"W x 1 1/4"Tall. Features 4 mounting holes and a large quantity of fins for efficient cooling. I bought 2, these are nice, look new. The only problem is that they have 2 little pegs on the flat side that you need to avoid or smooth out.

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31st December 2003, 11:16 AM	#4
hacknet diyAudio Member Join Date: Nov 2002 Location: sg	these heatsinks have a hell of a high resonance... i don`t know about you but i find that heatsink resonance plays a big part...

31st December 2003, 02:02 PM	#5
JCoffey diyAudio Member Join Date: May 2003 Location: Atlanta, GA	Well, thats exactly what I'm using. Yes they have those two little pegs, but those are what centers the PII processor to it. and thats why if you can get your hands on an old CPU, and pull it apart, you have an aluminum plate with spring clips for securing the chip to the heatsink with.

31st December 2003, 03:50 PM	#7
AJ Bertelson diyAudio Member Join Date: Jan 2003 Location: Maple Grove, MN	thanks for the link I have been looking for a spot to buy these

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