[Amps] Alternative cooling strategies for SB-220?

[texasrf at aol.com]

You can narrow it down to only 10 issues by referring to the yearly index  
in the December issues in those days.
 
73,
Gerald K5GW
 
In a message dated 12/17/2009 2:17:39 P.M. Central Standard Time,  
mausoptik at btinternet.com writes:

Colin,  can you narrow it down a bit beyond 'the fifties'? I have most QSTs 
from that  era but if you or anyone can narrow it below 120  issues.....

Cheers
Dave


-----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: 17/12/2009 18:58
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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