There was an article in QST many years ago called "The Stanley Steamer"
which described water cooled tubes. I believe ETO built an amp based on a
water cooled tube that Eimac made that had 1500 watts plate dissipation. The
principle being it takes 539 calories of heat to convert 1 gram of water at
100 deg C to vapor if I remember my thermodynamics correctly.
73 Hardy N7RT
----- Original Message -----
From: "Colin Lamb" <k7fm@teleport.com>
To: "Roger" <sub1@rogerhalstead.com>; "Carl" <km1h@jeremy.mv.com>
Cc: <amps@contesting.com>
Sent: Thursday, December 17, 2009 11:58 AM
Subject: Re: [Amps] Alternative cooling strategies for SB-220?
> Water Cooling:
>
> Jo Jennings, W6EI, installed a converted water cooled 4CX250 in the base
> of his mobile whip. He converted. I think Eimac subsequently built some
> water cooled version based upon the results. There was a writeup in CQ or
> QST in the fifties.
>
> 73, Colin K7FM
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