[Elecraft] KPA-100 Problems

[Rick Tilton]

Hi Doug!
I would reccomend that you check Z1.  I had a similar problem in that it
worked great for a little while then my power dropped to what the K2 would
do on its own.  Could not get the bias voltage adjusted either.  I had used
too small of a wire for Z1 and burned it right into.  Could not tell it
until I moved the ferrite beads and found it in the middle of a bead. May
not be it but worth a shot and would be a very simple and cheap fix. Good
Luck!

73...

Rick Tilton
ARS - N4WYK
n4wyk@arrl.net
n4wyk@amsat.org
Foothills of NC APRS and Satellite Website
http://www.n4wyk.com


> -----Original Message-----
> OK.  Some progress.  I had installed P6 backwards on the K2.  So I simply
> reversed J1 and suddenly had lots of noise coming from 40 meters.  For a
> moment I had full K2 output on the power meter.  Then I hit tune again and
> nothing.  Even with nothing, I was getting some action on C1.  But,
> sometimes the SWR shows on the display and sometimes it doesn't.  Now I'm
> back to a state of having receive through the KPA-100 but no RF
> getting back out to the antenna - even though momentarily I did.
>
> Doug -- W4DXV
> K2 #1920 K1 #1297
>
>