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[TenTec] Centaur tuning problems

To: tentec@contesting.com
Subject: [TenTec] Centaur tuning problems
From: Ronald Feutz <ronkk9k@yahoo.com>
Reply-to: ronkk9k@yahoo.com, Discussion of Ten-Tec Equipment <tentec@contesting.com>
Date: Sun, 19 Oct 2008 13:25:38 -0700 (PDT)
List-post: <tentec@contesting.com">mailto:tentec@contesting.com>
I have a late SN Centaur that I have used little in several years.  Last year I 
was checking it out and had difficulty getting it to tune properly.  I cooked a 
tube, and replaced the tubes with new 572's.  I hadn't tried it in a while and 
didn't remember if the tubes made the difference or not, so yesterday I checked 
it out and found that it still isn't right.
It only tunes properly on 40.  There it will make 700 watts with sharp tuning.  
On the other bands it ranges from mediocre, such as 500 watts on 80 with a very 
"mushy" peak down to untunable on 15, where it won't put out more than a few 
The only change I have made is to install the 10/12M board.  I took that out 
and put back the 15-160 input board for the tests, to eliminate that as a 
Any suggestions as to where to look will be appreciated.  I am an appliance 
operator but can generally figure stuff out if I can get some good advice on 
where to start and what to look for.
Thanks and 73,
Ron KK9K

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