[Amps] Using autotuner in place of input network
Durwydd MacTara
durwydd at hotmail.com
Fri Feb 13 15:29:24 EST 2004
Unfortunately, these "several reasons" were NOT posted in the reflector,
leaving many of us with similar questions "out in the cold!"
"Communications" is a People skill, the rest is technology.
Durwydd MacTara
>From: Gudguyham at aol.com
>To: wrt at dslextreme.com, amps at contesting.com
>Subject: Re: [Amps] Using autotuner in place of input network
>Date: Thu, 12 Feb 2004 07:52:27 EST
>
>In a message dated 2/12/04 01:34:47 AM Eastern Standard Time,
>wrt at dslextreme.com writes:
>
>
> >
> > Many thanks to all who wrote. There were several good reasons why this
> > is not a good idea.
> >
> > Back to the drawing board.
> >
> > Tnx again,
> >
> > --
> > 73, Bill W6WRT
> >
> >
>
>Hi Bill, I once used an MFJ 16010 mini-tuner in front of my Swan Mark 1
>amplifier as a tuned input. When not in line the exciter (Yeasu FT-847)
>would fold
>back in power to about 50 watts. I would then insert the MFJ tuner in line
>and the radio would put full power into the amp and the amp made full
>output
>power. I could tune it on all bands using that little tuner.
>Unfortunately I
>did not read any replies here on the board as to why the tuner in the radio
>would not work. Some tuners would endlessly try to seek a "match" as the
>impedance changed with the drive power, that could be a reason. But I can
>assure you
>that the "fixed" MFJ tuner worked wonders in place of a tuned input
>network.
>You might want to try something similar and see what happens. 73 Louie
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