[Elecraft] ALC and the K3

K9MA k9ma at sdellington.us
Thu Dec 21 16:13:30 EST 2017


Sometime back around 1970, I built an amplifier for my college radio 
club.  I spent many, many hours trying to get ALC to work, and failed 
completely.  Fortunately, the exciter really couldn't overdrive a pair 
of 3-500Z's, so we ended up running it just as Elecraft recommends, 
using only the exciter's internal ALC.  I'm sure amplifier designers no 
know a lot more about it than I did back then, but apparently closing 
the ALC feedback loop around an external amplifier is still difficult to do.

73,
Scott K9MA

-- 
Scott  K9MA

k9ma at sdellington.us



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