[Elecraft] KX1 losing its match

[David Pratt]

I get a very similar problem with my KX1, Lloyd, and it has put me off 
using it.

I can tune it up and it matches nicely, producing almost 4W output. Then 
unexpectedly while in the middle of a QSO the relays will start 
clattering and the power goes down to 1 to 2W.

I have rewound all my toroids and checked everything for dry joints and 
solder bridges, but the problem still persists.  It doesn't happen every 
time I use it, but it is unreliable.  Any pointers that anyone can give 
as to the possible cause will be much appreciated.

73 de David G4DMP

In a recent message, Lloyd Lachow <llachow at yahoo.com> said....
>  Lately, there have been a bunch of times when I
>power my KX1 with a 12V supply, activate the tuner to
>get a match, and the result is 4-5W and a good match.
>Then, while operating, or just while it's sitting, not
>being operated, I'll sometimes hear a few relays
>chatter for a split second, and the match seems to
>have been lost. When I transmit, I see that the power
>out is down to 2W or so. I need to activate TUN again,
>which will restore the match and the higher power out.