[Elecraft] K3 sudden loss of output power

[Pete Smith N4ZR]

I was routinely calling VK9WA on 40 when my amp suddenly started showing 
only 300 watts out.  A little exploration, with the amp out of the 
circuit, showed that my K3's output has fallen off to only about 30 
watts on 40and 45 on 20.  It shows 85 watts on 15 but full power on 
10M.  Indicated SWR is 1-1.5:1 on all bands.

Any diagnostic ideas much appreciated!

-- 

73, Pete N4ZR
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