[Amps] Alternative cooling strategies for SB-220?

[Dave White]

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 at cox.net>
To: "Colin Lamb" <k7fm at teleport.com>; "Roger" <sub1 at rogerhalstead.com>; "Carl" <km1h at jeremy.mv.com>
Cc: amps at 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 at teleport.com>
To: "Roger" <sub1 at rogerhalstead.com>; "Carl" <km1h at jeremy.mv.com>
Cc: <amps at contesting.com>
Sent: Thursday, December 17, 2009 11:58 AM
Subject: Re: [Amps] Alternative cooling strategies for SB-220?

[truncated by sender]