Can anyone advise please? I have just been on 17M ssb running 10 watts with the K3 No high power PA installed. I heard a ticking noise coming from the ATU. Switched off and disconnected the 450 feeder to the quad and got quite a large spark to the case of the ATU. The heavens then opened, although there was no sign of any thunder or lightning.

The K3 will now only put out a maximum of 5 to six watts on all bands. Before I order some new PA FETs has anyone got any other suggestions?
73
John G3YPZ
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