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Re: [TenTec] Model 411 amp (aka Centaur)

To: tentec@contesting.com, xtraham58@hotmail.com
Subject: Re: [TenTec] Model 411 amp (aka Centaur)
From: Joe Papworth via TenTec <tentec@contesting.com>
Reply-to: Discussion of Ten-Tec Equipment <tentec@contesting.com>
Date: Tue, 26 Jan 2016 12:28:03 -0500
List-post: <tentec@contesting.com">mailto:tentec@contesting.com>
     
   Thanks Andy. Was it the HV secondary that shorted?
  
 
  I isolated the HV secondary from the HV board and it reads open to the frame 
and chassis. (Reads about 45 ohms when connected to the board)
  
 
  Thanks, Joe, K8MP
  
 
 -----Original Message-----
 From: P C Andy Anderson &lt;xtraham58@hotmail.com&gt;
 To: Discussion of Ten-Tec Equipment &lt;tentec@contesting.com&gt;
 Sent: Tue, Jan 26, 2016 11:52 am
 Subject: Re: [TenTec] Model 411 amp (aka Centaur)
 
  
   
  
 Joe, I had a similar problem with my Centurion AMP.  It eventually failed  
 completely. The secondary of the power transformer shorted to the frame. I had 
 
 the Xformer rewound at TRS.  BTW this transformer problem is a known. 
  
 73' Andy, W3LI 
  
 ________________________________________ 
  
  
 Tuesday noontime, Joe: 
  
 I have a Centaur..............keep it covered when not in use. 
  
 My Elmer told me to always keep it covered..................dust is the 
 problem. 
  
 Even when covered, open it up every two-three years and do a internal 
 cleaning. 
  
 N1MHC/alsirois 
 ============= 
  
  
  
 Gents, 
  
  
 Have any of you gone a few rounds with a Centaur amp? 
 I have a one that blows fuses very intermittently. It vaporizes them both, 
 simultaneously, so it's apparently a dead-short somewhere. This happens even 
 in stand-by. (i.e. No key-down) 
  
  
 Before I tear into it, anyone have any ideas of common failures in these 
 amps? 
  
  
 Later, Joe, K8MP 
  
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