Re: TO3 & HEATSINK
From: Airy R. Bean (ariy.r.bean_at_lycos.co.uk)
Date: 07/29/04
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Date: Thu, 29 Jul 2004 14:46:59 +0100
Sorry but you're too far away to make the gift worthwhile.
Don't forget if you've the heat sink vertical not to make
the valleys vertical, otherwise only the bottom of the
heat sink works. - The air there gets hot and starts to rise, but
further up the valley there's no temperature difference and so
the heat sink doesn't give off any heat. Mount the heatsink
so that the valleys are horizontal - the turbulent flow that results
gives cooling from the whole area. (Little known factoid)
"exxos" <exxos@home.co.uk> wrote in message
news:4108eefe$0$6441$cc9e4d1f@news-text.dial.pipex.com...
> "Airy R. Bean" <ariy.r.bean@lycos.co.uk> wrote in message
> news:2ms1l7Fpm4okU2@uni-berlin.de...
> > In your suggestion, you need to be aware that the Collector is normally
> > the case connection. Do you really want your heatsinks to be at
something
> > other than ground to external screwdrivers and the like?
> I live in Uttoxeter, Staffordshire, yeah I know the collector is the
case,
> didnt think about the electrical connection, the heatsink would be live,
not
> good!. I'm looking into using CPU heatsinks at the moment, very cheap
plus
> on most you get a fan, all for under a tenner! might give it a try.....
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