----- Original Message -----
From: "Bill, W6WRT" <dezrat1242@yahoo.com>
To: <amps@contesting.com>
Sent: Tuesday, October 13, 2009 7:24 PM
Subject: Re: [Amps] Checking Plate Choke resonance
> ORIGINAL MESSAGE:
>
> On Tue, 13 Oct 2009 09:53:00 -0700, Vic K2VCO <vic@rakefet.com> wrote:
>
>>
>>I don't see how a parallel resonance would hurt, since it would create a
>>very high
>>impedance, which is desirable.
>
> REPLY:
>
> The parallel resonance is accompanied by very high circulating current in
> the
> choke. If you think about it, your pi-network is also a parallel resonant
> circuit with high circulating current even though it is loaded by the
> antenna.
> The RF choke has no such load and the circulating current is even higher.
> Since
> the RF choke is normally wound with small wire, smoke will soon follow.
>
> 73, Bill W6WRT
>
No load, no current, except for DC
Carl
KM1H
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