From: legg@nospam.magma.ca   
      
   On Mon, 11 Sep 2023 11:19:48 -0400, Gary Shaddick    
   wrote:   
      
   >A fellow ham operator is having a problem: every time he transmits with   
   >an amplifier in place, he either blows the amplifier fuses and/or   
   >destroys the tubes if using the tube unit he has.  He has been keeping   
   >drive to the amp as recommended and even has tried low drive first, but   
   >once he tries full output on either amp, they go out.  He's tried   
   >different antennas but to no avail.  He can run the radio by itself at   
   >200 W into any of his antennas with no issues whatsoever (the amp is 500   
   >W).  His SWR's have been normal, even at the time the amps stop working.   
   >Notice I said amps because the same behavior happens on both of the two   
   >amps he owns.   
   >   
   >I've suggested possible RFI issues somehow causing the issue, but this   
   >is just a guess.   I'm just as perplexed as he is.   
   >   
   >Any thoughts you have would be welcome and I could run suggestions by him.   
   >   
   >Thanks in advance,   
   >Gary   
      
   Feeder lines, connectors or lightning arrestors need replacing.   
      
   RL   
      
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