[Elecraft] K3 spurious

[DOUGLAS ZWIEBEL]

Yes, a well known issue for a LONG time...with a SUPER EASY solution.

It is indeed due to the internal speaker.

A year or so ago, I got a call from a local (a couple miles away) that
he had a "spurious" on his K3 (I helped him build it).  I listened,
yes it was there.  When he switched from the internal speaker to
headphones, it was gone.  I think he ended up using an external
speaker which also solved the problem (some guys like speakers!).

de Doug KR2Q