[Elecraft] K2 Transmitter Alignment

[Don Wilhelm]

Joe,

The most likely place to look for the problem is in the bandpass filter
section for 20 and 30 meters.

First thing to check would be component values, and second thing is to check
the solder joints (then check soldering again, and then check soldering once
more).

After assuring yourself that all is correct, spin the adjustment caps for 20
meters around 10 or 20 times - many need 'breaking-in' before they work
correctly, then try peaking the bandpass again. (You COULD try this first if
you wanted to - without tearing into the board).

73,
Don W3FPR


----- Original Message ----- 

I'm at the Transmitter Alignment on page 74 of the manual.  I can peak the
output on all bands except 20&30.

On 20m adjusting L8 and L9 there is no apparent effect in output.  On 30m
adjusting L8 with up to four clockwise turns I see power continuously
increasing until the display shows HiCur.

I found no ideas in the archives; this K2 is #3751.  Any ideas that I can
quickly check before disassembling the rig for board check?