Sorry for the confusion. I was thinking in a more general
sense such as amplifiers using
parallel 3-500z or even a 3CX3000A7 that have low output impedances. My
point is that they would
benefit from low Q plate coupling network due to lack of necessity of
tuning amp when changing
frequency on the same band. The Q is approximately the square root of the
impedance ratio.
High Q tank circuits only seem to be necessary to reduce harmonic
emissions.
73
Bill wa4lav
At 08:48 AM 1/16/2003 -0800, you wrote:
>Hi Bill,
> Hmmm...sorry about that... I was moving some e-mail around and I guess
>I somehow zarfed what I wrote to you.
>
> My comment was... that as you noted yourself in your previous posting
>the L network will(must) have a Q of 10 to make the 5K to 50 ohm match.
>No way to make it low Q with just an L network.
>
>73 & Good morning,
> Marv WC6W
>
>
>On Thu, 16 Jan 2003 11:35:15 -0500 Bill Fuqua <wlfuqu00@uky.edu> writes:
> > I see no comments just my email returned.
> > 73
> > Bill wa4lav
> >
> >
> > At 07:56 AM 1/16/2003 -0800, you wrote:
> >
> > >On Thu, 16 Jan 2003 10:07:30 -0500 Bill Fuqua <wlfuqu00@uky.edu>
> > writes:
> > > > It seems to me that if you have a band switched low
> > pass
> > > > filter
> > > > following your impedance matching network the
> > > > Q of the network is not so important. In fact a Q of 2 or 3
> > would be
> > > > just
> > > > fine. It performs the matching requirement and the
> > > > switched filter eliminates the harmonics. Is there anything I
> > am
> > > > missing
> > > > here???
> > > > Also, I have noticed that a few people don't realize
> > that
> > > > the capacitor to
> > > > ground goes on the Hi-z end of the
> > > > network, the plate.
> > > >
> > > > 73
> > > > Bill wa4lav
> > > >
> > > >
> > > >
> > > > _______________________________________________
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