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Re: [Amps] gs35b hf amp

To: amps <amps@contesting.com>
Subject: Re: [Amps] gs35b hf amp
From: Ron Youvan <ka4inm@gmail.com>
Reply-to: ka4inm@gmail.com
Date: Thu, 20 Oct 2016 10:16:29 -0400
List-post: <amps@contesting.com">mailto:amps@contesting.com>
   Darrell KK4RSV Wyatt wrote:

HI  to all of the group. Looking for a little help/knowledge. I am building a gs35b 
amplifier for 10-160 meters. I am having a heck of a time trying to get 10 meters 
output/resonance correct due to the stray capacitances. I am running around 5kvdc 
on the plate unloaded. It is dropping to about 4.6kvdc when loaded. I can only get 
about 800 watts from 10 meters with 100 watts drive into a dummy load. The amp does 
not have a tuned input. Does anyone know of any tricks to reduce the stray 
capacitances? I think I have read somewhere about adding a coil between the 
blocking cap and C1 but I can't find anything about that now and I don't really 
remember the specifics. Any help would be appreciated.Thanks & 73

  I don't know, but is the 10 meter coil closest to the tube, next the
15 meter coil etc?
  The length of wires going to the band switch cam be harming you.
--
  Ron  KA4INM - Youvan's corollary:
                Every action results in unwanted side effects.
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