[Elecraft] K3 very loud pops on 80m

[Allan Taylor]

I have K3 S/N 740 and reasonably current firmware (late 2009). As it
happens, I used the K3 for the first time on
80m last night during the CWT mini-event. During the appx. 20 minutes
I was on 80m, I heard several VERY LOUD
pops. They weren't sustained but were dangerously loud. The first few
occurred with headphones on. I resorted
to speaker operation after that. This has never happened on 40 or 30m
where I have principally been operating with the K3.

Is this a known problem? Am I missing a firmware update?  This was not
nice at all.

-- 
73     Allan    K7GT