[Elecraft] K2 issue

[Vic K2VCO]

Tonight I decided to check out my K2, QRP configuration, for Field Day. I tried it on 40, 
20 and 15 meters, and it put out a solid 14-15 watts, drawing about 3.5 amp.

Then suddenly it went dark. The fuse in my rigrunner had blown. Silly me, I had plugged 
the K2 into a slot with a 2 amp fuse. I replaced the fuse with a 5 amp one, and started it 
up again. But now I can only get about 10w maximum when the power control was turned all 
the way up! Current draw is now about 2.15 a.

So, did I blow one of my finals? And if so, could the blowing of the external fuse be the 
cause?
-- 
73,
Vic, K2VCO
Fresno CA
http://www.qsl.net/k2vco