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Re: [Amps] Looking for eimac 3-500Z

To: Amps@contesting.com
Subject: Re: [Amps] Looking for eimac 3-500Z
From: DEHAYS Dominique <dominique.dehays@enac.fr>
Date: Thu, 14 Feb 2008 08:25:01 +0100
List-post: <amps@contesting.com">mailto:amps@contesting.com>
Hello ,

I recently got a second hand  Drake L4 amplifier. I am normaly not an HF 
op , but sometimes , I have to use HF (  for VHF nets) , so the L4 is a 
nice addition when HF conditions are not good. I am rather used to VHF 
amps , where the blower is quite powerfull , and the tubes are well 
cooled. On the L4 , there is only a quite weak air stream , provided by a 
small , low speed squirel cage blower. One can easily feel the warm smell 
in the shack after a 1 minute transmission whne going back in RX  , and I 
dont like this.... Anybody has ever improved the L4 cooling? I'm thinking 
I could add two blowers , each one above one tube to " suck" air trougth 
the tubes chimneys. What do you think about this?

73
Dom/F6DRO
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