[Elecraft] KX3 Behavior with Brick Amplifier

Mel Farrer farrerfolks at yahoo.com
Thu Mar 9 17:00:12 EST 2017


Or , you can turn the amp on with a keying line and sweep the input with a analyzer to see where it is matched.  CB amps are notorious for having very narrow input match networks, like Jim said, but the transformers are most likely broad band.  Worth tinkering with if you want to see whats going on..
Mel, K6KBE

      From: Jim Brown <jim at audiosystemsgroup.com>
 To: elecraft at mailman.qth.net 
 Sent: Thursday, March 9, 2017 1:49 PM
 Subject: Re: [Elecraft] KX3 Behavior with Brick Amplifier
   
On Thu,3/9/2017 1:11 PM, Richard Lawn wrote:
> Or am I missing something?

I'm guessing that that amp is a POS. You can filter harmonics, but you 
can't filter IMD. I'd throw it in the trash. The SWR issue is likely 
because the input circuit is tuned for 11M and doesn't pass whatever 
frequency you're trying to drive it with.

73, Jim K9YC

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