[TenTec] Quieting fan

[Gary Hoffman]

Ken,

I certainly agree that we are not going to run cold water through 572B's.
:))

In the modern shack there are (at least) three places where there might be a
fan, or a fan might be useful (RTTY), and those are, the computer chip, the
HF rig, and the Amp.  Obviously water is a candidate for only some of these
uses.

I'm not pushing it as a panacea, or as a solution for every case, merely as
an idea which I have applied very successfully for several of my past
applications, and which might occasionally be of use to some Hams in some
cases.  In fact, I'm not pushing it at all...its just a fascinating and very
efficient idea, in those cases where it can be used.

Regards,

Gary
AA2IZ

----- Original Message ----- 
From: "Ken Brown" <ken.d.brown at verizon.net>
To: "Gary Hoffman" <ghoffman at spacetech.com>; <tentec at contesting.com>
Sent: Monday, January 19, 2004 7:17 PM
Subject: Re: [TenTec] Quieting fan


>
> Hi Gary,
>
> The original post was in regards to an amplifier which uses a pair
> (maybe 4) 572B triodes. These are glass envelope tubes. While it may be
> possible to precool the air using a chilled water system, there would
> still be a need for a fan to blow the air across the tube envelopes.
> Perhaps the air flow rate could be reduced and the fan could be quieter
> using cooler air.
>
> There are water cooled tubes and conduction cooled tubes, which could
> reasonably incorporate a liquid heat transfer media. In the case of
> glass envelope tubes I really see no reasonable way that water cooling
> could be applied.
>
> DE N6KB
>
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>
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>