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Re: [Amps] Liquid Cooling Systems

To: Tomm Aldridge <KD7QAE@ARRL.NET>, David Smith <vk3hz@wia.org.au>
Subject: Re: [Amps] Liquid Cooling Systems
From: Pete Smith <n4zr@contesting.com>
Date: Fri, 11 Mar 2005 07:31:30 -0500
List-post: <mailto:amps@contesting.com>
Boy, that's a great site -- lots of info on issues like the relationship 
between % of glycol and cylinder head temperature, which strikes me as very 
analogous to anode temperature in an amp.

73, Pete N4ZR

At 01:03 AM 3/11/2005, Tomm Aldridge wrote:

>Here is the reference for Red Line's Water Wetter product:
>http://www.racerpartswholesale.com/redtech3.htm
>
>
>David Smith wrote:
> > I'm certainly very interested in this discussion as I'm contemplating a
> >  water-cooled 23cm amp project shortly.
> >
> >
> >>... In both applications you are trying to increase the heat  transfer
> >>into and out of a liquid. You don't really  need a
> >>USE-IN-TRANSMITTING-TUBES-ONLY  label on a  product to use it in a liquid
> >>cooled tube..
> >
> >
> >  One thing that you do need to consider in cooling a tube amp is the
> >  conductivity of the coolant.  It's not a concern in a race car, but when
> >  there's 4kV+ at the cooler, it certainly IS a concern in an amp.  This
> > rules
> >  out any use of salt.  Does anyone know if Glycol or "Water Wetter" makes
> > the
> >  solution conductive at all?
> >
> >  There's also corrosion problems to consider.  As I understand, 
> Glycol-based
> >  coolants also contain corrosion inhibitors.  Would corrosion be an 
> issue in
> >  an amp using just distilled water?
> >
> >  Regards,
> > Dave
> > VK3HZ
> >
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