[TenTec] Hi power Ten Tec ant tuner swr drift?

[denton]

Got a couple of nice replies right off the bat...should of added more 
specifics..
I am running barefoot at 100 watts..no amp in the place
I am not using the internal balun but was using a 4:1 current balun I 
homebrewed as a remote balun...with 3 feet of rg-213 coax. I have determined 
that the 4:1 current balun was not accepting power on 80 meters and have 
replaced it with a homebrew 1:1 balun that I have verified as being good via 
an antenna analyzer.
I will replace the internal balun with something a lot more stouter...
----- Original Message ----- 
From: "Michael Tope" <W4EF at dellroy.com>
To: <tentec at contesting.com>
Sent: Sunday, November 14, 2004 9:45 AM
Subject: Re: [TenTec] Hi power Ten Tec ant tuner swr drift?


> Are you using the ferrite balun? If so, check its temperature too.
> The stock balun in the this tuner is very unforgiving. When I built
> this tuner back in 1985, I smoked the balun almost immediately
> when I started using an amplifier with it.
>
> Mike, W4EF....................
>
> ----- Original Message -----
> From: "denton" <denton at oregontrail.net>
> To: "Tentec Reflector" <tentec at contesting.com>
> Sent: Sunday, November 14, 2004 8:43 AM
> Subject: [TenTec] Hi power Ten Tec ant tuner swr drift?
>
>
>> Hi all...
>> I have recently purchased an old Ten Tec L network ant tuner..the one 
>> that
> was in kit form many years ago.
>> I have noticed that when feeding it to a 22 ft elevated ground plane on 
>> 80
> meters (yeah I know, really a mismatch) via 450 ohm twin lead that the swr
> will drift on 80 meters and the 2 kv ceramic caps on the cap switch will 
> get
> really hot...
>> Will switching the caps to transmitting micas alliviate the problem??
>> Bad switch??
>> 80 meters on this particular antenna apparently is the only band this
> occurs with this transmatch...my 238A does not exhibit this little problem
> when feeding the same antenna.
>
>
>
>
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