[Elecraft] [K2] 30m problem new build

Ron Greene rgtech1 at roadrunner.com
Wed Feb 25 10:23:15 EST 2009


I'm at the final stage of test and alignment of my new K2, sn 6687 and I 
can not get the 30m band working.

Tests and alignments on all the other bands are OK.  After successfully 
completing the 20m tests which includes good reception and 10w output I 
am unable to get L8 and L9 to peak on 30m. At first I was unable to hear 
WWV @ 10Mhz until I turned L8 all the way in and then finally I could 
hear WWV but weak.  Turning L9 all the way in only made a slight change 
to WWV.  These settings of L8 and L9 of course then completly detune the 
20m band.

In the 20/30m BP and LP filter areas I have visually re-checked numerous 
times all caps for correct values, 20/30m Toroid types and windings and 
resoldered all pads. I reseated U1 and made sure no pins were bent.  VCO 
E is 5v at 10.100 Mhz.

I'm at a loss at this point.  Any help greatly appreciated.

Ron,
N6IB




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