[TenTec] Low output on Centruion after lightning

Billy Cox aa4nu at ix.netcom.com
Mon Jul 10 20:46:28 EDT 2006


What does the amp show for output when driven into a Dummy Load?

I would run that test next, before I started buying new tubes/etc.

Spend some time doing a bit of troubleshooting to find the problem.

73 Billy, AA4NU

----- Original Message ----- 
From: "Jim Miller WB5OXQ" <wb5oxq at grandecom.net>
To: <tentec at contesting.com>
Sent: Sunday, July 09, 2006 10:20 PM
Subject: [TenTec] Low output on Centruion after lightning


>I have a Centurion about 6 years old that has always made around 1200-1300 
>watts on all hf bands except about 1000 on 10 meters.  I recently had a 
>lightning strike to my fiberglass dual band vhf uhf antenna on a different 
>tower from my hf antennas and neither of my hf transceivers were damaged. 
>I now find that I can only get about 700 watts on any band driving the amp 
>with either transceiver.  Could this have damaged the tubes?  I don't mind 
>a new pair of 3-500's if that will fix the problem.  Should I buy the 
>regular 3-500z tubes or the zg graphite models.  Will I gain anything by 
>using the graphite plate tubes?  Any mods anyone can recommend that will 
>improve the amp performance while I am in there?  Suggestions please!
>
>      Jim & Ella Miller
> WB5OXQ & KA5EPM
>     Abby & Sparky
> Dalmatian Furbabies
>        Waco, TX
> _______________________________________________
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> TenTec at contesting.com
> http://lists.contesting.com/mailman/listinfo/tentec
> 



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