The nichrome is taking the place of a low loss inductor, often made from
wide silver plated strap in commercial grade and military amps, and tinned
#12 or 14 in ham amps. You are then replacing an almost lossless inductor
with a resistive element that has some inductance.
Where is the wanted RF going to go without loss? It cant happen....loss is a
given and is a function of frequency.
Carl
KM1H
------ Original Message -----
From: "Roger" <sub1@rogerhalstead.com>
To: <amps@contesting.com>
Sent: Tuesday, July 27, 2010 7:21 PM
Subject: Re: [Amps] More parasitic choke questions
>
> Getting back to the nichrome, or resistive material for the coil, I'd
> think the only thing it'd do would be to lower the Q with an increase in
> temperature.
> So in the case of 10 meters, if it started absorbing some power, which
> is likely then the Q would start coming down, and it would absorb still
> more power. Yet the purpose of the parasitic choke is to prevent the
> oscillation, not absorb power, or did I miss something?
>
> 73
>
> Roger (K8RI)
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