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Date: Sun, 09 Apr 2006 15:16:19 +0200
From: Alberto di Bene <dibene@usa.net>
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Subject: LF: Re: Tech questions  G3YXM amp+18 divider
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Dick wrote:
> 
> I am using a large heatsink 12x15x5cm.
> On this heatsink I mounted a 1.5mm thick copperplate 75x150mm in order to
> transport heat quick away from the FET's.
> Maybe it's some 'overkill' , but I just want to set up a thing that can run
> for hours
> on full power; just a bit of reserve...........
> 
Why don't you use one of those heatsinks with blower meant to be applied on Pentium or Athlon CPUs ?
They have a large flat surface, ideal to screw on it a couple of Mosfets, and the blower is designed to remove a large 
amount of heat from the metal.
They can be found for almost nothing at ham fairs, or salvaged from old PCs at the local city dump.

73  Alberto  I2PHD