[1000mp] MPV Driving Amp

[HAROLD B MANDEL]

There's a company that makes an automatic antenna tuner board, plus all
sorts of
ATU's, and the board model is meant to go int he input circuitry of
an amplidfier.

My next Triode project will definitely include this device.

Hal
W4HBM

On Sun, 22 Oct 2006 10:41:34 -0500 "Win" <w0lz at winlyn.us> writes:
> I have heard, or read on this list, that you should not drive an 
> amplifier with the tuner in line. I am sure that there is a good 
> reason for this, but I can not, for the life of me, figure out what 
> is is.  
> 
> Yesterday, when a DX station I needed appeared on 15 meters, I 
> switchewd the amp over and started tuning.  The SWR going into the 
> amp was 2 to 1, limiting my drive.  This is probably because of some 
> mods I made in the amp.  In any case I turned on the tuner and 
> matched to the amp, and made the contact.  
> 
> Correcting the problem with the amp is nothing more than adding a 
> cap to the input circuit the nexty time I am into it..  I still 
> ponder, however,  why I should not use the tuner into the amp.  I 
> have done this before many times with other rigs using passive 
> external tuners.