>
>Hi Alek,
>
>> When I tune up on 10m, I get arcing on the 160m position on the bandswitch
>> to the frame of the switch. This position switches in the 160m padding
>> capacitor. Nothing in the 160m circuit is connected when it's on 10m. The
>> tubes also get extra warm in the 10m position.
>
>What you have is high voltages appearing because of a poor
>switching scheme or wiring error.
>
? My guess is that arcing of open 160m Tune padder contacts on another
band could be due to different mechanism. /See the bandswitch on page 33
of the October, 1990 *QST*/.
>I'd wager if you look, you simply have not tied the tank coil taps
>that aren't being used to the loading cap and the unused turns are
>acting like a step-up transformer.
>
? The 160m Tune padder contacts have nothing to do with the coil taps,
Tom.
>> I was thinking of getting one of the AG6K suppressor kits to see if that
>> changed things. I probably will anyway, just for insurance.
>
>I hang a rabbit's foot and dead chicken claw on my amplifier's
>electrical outlet. It is just as effective, costs less, and doesn't hurt
>ten meter performance.
>
? a tender nerve. // Does higher VHF Q sound like a good idea for a
circuit that is supposed to dampen VHF?
>
- cheers, Tom
Rich...
R. L. Measures, 805-386-3734, AG6K, www.vcnet.com/measures
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