[Amps] Using autotuner in place of input network

[Gudguyham at aol.com]

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