[Amps] AL 80B Question

Gudguyham at aol.com Gudguyham at aol.com
Mon Jan 19 17:01:35 EST 2009


To my knowledge the AL-80B amp was never intended for use on 30 meters AND  I 
am not aware that it has a bandswitch position for 30 meters..  The  reason 
you are not getting much power output is because if you are using it in  the 20 
meter position for 30 meters, the tank circuit and the input circuit will  be 
too far off resonance for the amp to load properly.  For the amp to work  
properly on 30 meters, the tank coil would have to be re-tapped somewhere  
between the 40 and 20 meter positions and the input circuit would have to be  
re-tuned accordingly.  I am not a bit surprised at what you are reporting  taking 
this into consideration.  The amp simple was never designed for that  band.  Lou
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