[Elecraft] K3 speaker resonance problem

[Brett Howard]

Some have also added black tape to the top panel in the locations where
it comes into contact with certain areas of the chassis.

On Mon, 2008-06-30 at 20:23 -0700, Allan Taylor wrote:
> After a rather hectic month, I finally got my K3 on the air this
> afternoon. (Worked by coincidence another K3: WA7VHO)).
> But unfortunately my unit (from the kit) has a speaker resonance with
> the cabinet at about 700 Hz or so. (Not good for a CW
> op!)  As others may have had this problem, could they share the
> likeliest screws to fuss with or case components to reposition
> slightly?
>