[Elecraft] [Bulk] K2 output power on 10 meters

[Bill Coleman]

On Dec 30, 2010, at 11:36 PM, Mike and Alicia Fanning wrote:

> I have been tweaking on my K2 for the last several days trying to get  
> the transmit power up to snuff on 10 meters.  Right now, the best I  
> can squeeze out is about 8.5 Watts.  I'm in pretty good shape on 12  
> meters, about 10 Watts there, with max output of 14 Watts on 40m.  I  
> have rewound and elevated T2, adjusted the turns spacing on the low  
> pass filter toroids L21 and L22, and re-peaked the bandpass filters.   
> 8.5 Watts is as good as I can get.  Is this typical for a K2?  Is  
> there something else I need to be looking at?

Not typical. You should be able to get 10w out. 

I had limited output on 10m until I elevated T2 and re-peaked, and then didn't have a problem. 

Is there any chance you may have fried one of the output transistors?

Bill Coleman, AA4LR, PP-ASEL        Mail: aa4lr at arrl.net
Web: http://boringhamradiopart.blogspot.com
Quote: "Not within a thousand years will man ever fly!"
            -- Wilbur Wright, 1901