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Re: [Amps] Tuned input design / measurement questions

To: Peter Voelpel <dj7ww@t-online.de>
Subject: Re: [Amps] Tuned input design / measurement questions
From: Drax Felton <draxfelton@gmail.com>
Date: Tue, 16 Apr 2013 14:59:02 -0400
List-post: <amps@contesting.com">mailto:amps@contesting.com>
This is similar to the misconception that SWR other than 1:1 causes finals to 
heat?


Sent from my iPhone

On Apr 16, 2013, at 1:15 PM, "Peter Voelpel" <dj7ww@t-online.de> wrote:

> The RF cathode current is anode RF current + grid RF current.
> The return path imho for it is through the input impedance and chassis
> ground, not through the transceiver.
> 
> 73
> Peter
> 
> -----Original Message-----
> From: Amps [mailto:amps-bounces@contesting.com] On Behalf Of Vic K2VCO
> 
> If you don't have a tuned input circuit in the amplifier, then the return
> path for the RF cathode current is through the coax and the transceiver
> output tank. This causes the performance to be dependent on the cable
> length. It also might damage components in the transceiver.
> 
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