K2 - Low output during initial TX alignment

Posted by JT Croteau on Sep 04, 2007; 7:15pm
URL: http://elecraft.85.s1.nabble.com/K2-Low-output-during-initial-TX-alignment-tp452294.html

During the initial TX alignment of my K2, I can't seem to get the
output power above 0.2W - it fluctuates between 0.1 and 0.2 and
doesn't change as I adjust L1 and L2.  I am, however, able to tune L1
and L2 for RX just fine.  I am showing 350 mV at my dummy load so some
RF seems to be getting through.

I don't see any obvious soldering problems and T1 through T4 appear to
be wound correctly.  I have not done any signal tracing yet but
initial voltage check of the driver and finals appear fine.  However,
I am concerned about the voltage of the drivers collector.  It jumps
up to 14V at transmit but it's supposed to be 13.3V.

I have to go out and buy a new DMM so I can do signal tracing (my
cheap DMM has fixed probes and I can't adapt them properly).  Any
other ideas before I dive into signal tracing?

Thanks

--
JT Croteau, N1ESE - Manchester, NH
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