[Amps] Shunt Feed Tower Issues

Harold B. Mandel ka1xo at juno.com
Mon Nov 1 18:13:26 EST 2004


Dear Javier,

Your absolute best solution is to use a vacuum variable to tune the
tower.

Choose one with enough KVaR and HV rating to be well beyond 2X your
maximum
transmitted power so that voltage potentials arising from
frequency-originated
mistunings are within its working range.

Hal Mandel 
W4HBM
On Mon, 1 Nov 2004 13:46:24 -0400 "Javier" <yv5mbx at arrl.net> writes:
> I was using an air variable capacitor (bought from Henry Radio) to 
> adjust my tower on 160 mts, the swr were about 1.2.
> 
> Last friday I installed a more powerfull amp (1300 watts) and after 
> few hours of operation the capacitor arced so  along the weekend in 
> installed a cpacitor bought as Kit from Ten-Tec but the swr it abt 
> 2.
> 
> I have stored an old Dentron GLT-1000 Tuner. Is my understanding 
> that the power rating of this device is abt 1000 watts, but I would 
> like to know if using this device could be suitable to be used in 
> 1.8 Mhz at 1300 watts.
> 
> Ideas welcome.
 


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