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Re: [Amps] LDMOS HEAT SPREADERS

To: amps@contesting.com
Subject: Re: [Amps] LDMOS HEAT SPREADERS
From: Steve <g8gsq72@gmail.com>
Date: Tue, 30 Aug 2016 15:53:41 +0100
List-post: <amps@contesting.com">mailto:amps@contesting.com>
Can't see why not with a bit of effort and ingenuity, and looks well worth the effort.

The same people list 'liquid chill plates' under the 'heat sinks' category. These look remarkably similar to ones Aavid advertise. While to cooling isn't quite so good, mounting the transistor and pcbs is easier. The typical package can sit in line with the pipes in between a pair or, if the fixing holes work out, crossways stradding two pipes.

Aavid prices aren't much different from buying a heat spreader and suitably large air cooled heatsink.

Steve

I wonder if a high power transistor could mount on a chill block sold
for puck type very high power devices. For instance,


http://catalog.chtechnology.com/viewitems/extruded-bonded-fin-heat-sinks/liquid-chill-block?&plpver=10&forward=1



Of course, getting the RF into and out off the device with this
cooler in the way is tricky.

John K5PRO
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