[Elecraft] K2 Transmitter Power Issue

[Don Wilhelm]

William,

Check the soldering carefully, particularly on the Control Board.  Also 
check and re-check the placement of the components mounted on the back 
of the Control Board (they are part of the power control circuits).

Check soldering, then re-check the soldering, and when that is finished, 
check the soldering.

Good luck in finding it.
73,
Don W3FPR

kc4wvl wrote:
> K2 s/n 4276
> Firmware Revision(s):  2.04P  1.09
>
> I am having a problem with output power stability. Example: Power set to 5 watts. When transmitting (into a dummy load), power out is all over the place, from as low as .2 watts to as high as 12 watts. This fluctuation is very rapid. Measured current (at the P/S) fluctuates with the power output fluctuation.
>
> Can anyone give me an indication of any possible cause and solution?
>
> Thanks.
>
> 73's de KC4WVL
> William Smith
>
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