[AMPS] ARCING

[km1h @ juno.com]

On Tue, 14 Apr 1998 08:30:18 -0400 CATALANO_DENIS_E@hq.navsea.navy.mil
writes:
>     
>
>     Greetings.  I have a TENTEC Centurion (pair of 3-500Z) that has 
>worked 
>     great for several years.  Used it this weekend to work the H40 on 
>
>     RTTY.  Although I worked the H40, the amp started arcing (because 
>of 
>     operator error/wrong antenna/you name it!).  Anyway, now when I 
>drive 
>     the amp to full power with correct load, it arcs - all bands.  It 
>
>     looks like the arcing is in the big tuning capacitor.  It sounds 
>like 
>     a spark-gap transmitter.  It does it whenever I drive it over 
>400W.  I 
>     haven't opened it up yet, so want to get some ideas of what to 
>look 
>     for, and possible repair ideas.  
>     
>                                           TNX & 73 Denis, W4DC


I would suggest opening it up first and do a visual inspection....saves
us all a lot of time. It might be as simple as filing off the melted
aluminum from the capacitor if not too far gone.


GL  Carl  KM1H


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