[Amps] Tuned input design / measurement questions

[Drax Felton]

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 at 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 at 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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