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Re: [Amps] gs35b hf amp

To: amps <>
Subject: Re: [Amps] gs35b hf amp
From: Ron Youvan <>
Date: Thu, 20 Oct 2016 10:16:29 -0400
List-post: <">>
   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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