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Re: [Amps] Alternative cooling strategies for SB-220?

To: Hardy Landskov <n7rt@cox.net>, Colin Lamb <k7fm@teleport.com>, Roger <sub1@rogerhalstead.com>, Carl <km1h@jeremy.mv.com>
Subject: Re: [Amps] Alternative cooling strategies for SB-220?
From: Dave White <mausoptik@btinternet.com>
Date: Thu, 17 Dec 2009 20:26:57 +0000
List-post: <amps@contesting.com">mailto:amps@contesting.com>
If my memory serves me correctly the Stanley Steamer was actually a vapour 
phase tube (a 3CV*** or 4CV*** as opposed to a 3CW*** etc) in a boiler rather 
than a water cooled tube.

Eimac published this as an amateur service newsletter or similar.  I do have a 
copy somewhere if you'd like me to copy it.  Actually I have all the Eimac 
bulletins and keep meaning to scan them when I get some of that rare resource 
called 'time'

Cheers
Dave G0OIL

-----Original Message-----
From: "Hardy Landskov" <n7rt@cox.net>
To: "Colin Lamb" <k7fm@teleport.com>; "Roger" <sub1@rogerhalstead.com>; "Carl" 
<km1h@jeremy.mv.com>
Cc: amps@contesting.com
Sent: 17/12/2009 19:57
Subject: Re: [Amps] Alternative cooling strategies for SB-220?

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?

[truncated by sender]
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