[Elecraft] K1 Power Out flaky

[Don Wilhelm]

Dave,

That sounds like the behavior of an unsoldered or poorly soldered 
connection that is heating when you transmit.  I don't know where to 
tell you to start looking, but if you want to shorten the search, you 
might be able to tell something from the Transmit Signal Tracing steps 
in the back of the manual.  It has a chance of leading you to the 
failing stage and then you can examine that stage in detail.

Alternately, you can reflow the soldering over the entire RF Board with 
a hot (750 degF) iron and dwell on each connection long enough to watch 
the solder melt and flow.

73,
Don W3FPR

On 11/15/2014 11:02 AM, w1dwz w1dwz wrote:
> I am an  ELECRAFT Newbie.     Just finished  a K! and it works great  out
> of the box. I am slowly learning the operating stunts with the TAP  /
> HOLD   feature .
> One little glitch . To set  the output power  , it sets properly , say at
> 4.0 Watts    ,   with the   WPM  +/-   buttons  ,  but after a few seconds
> it dribbles around and goes down to   0.5 Watts or whatever.... Tweaked the
> cans on the Filter Board  but still NG  .    Wonder if others have
> experienced this anomaly.   Dave   W1DWZ  RI
>