[Elecraft] K3 Speaker cabinet resonances

[Joe Planisky]

Hi Deni,

I had a bit of resonance at 300 & 310 Hz.  There is a screw just below  
the speaker grille that holds the chassis stiffener bar to the top  
cover.  I found that leaving this screw just a tiny bit loose (or  
perhaps, not tightening it completely would be a better way of saying  
it) completely eliminates all cabinet buzz on my K3.

73
--
Joe KB8AP

On Oct 8, 2008, at 1:59 AM, Deni F5VJC wrote:

>
> Has anyone found a solution to the cabinet buzz from the K3 internal  
> speaker?
>
> I've not used the internal speaker until recently on my K3 and now  
> find I
> have annoying cabinet buzz around 450Hz and 600Hz, not so good for CW!
>
> I haven't tried any damping as yet and just wondered if anyone has  
> managed
> to cure this cabinet resonance.
>
> 73,Deni
> F5VJC
> K3 325
>
> -- 
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