K3 speaker resonance problem

[Allan Taylor]

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?

--
73 Allan K7GT
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[Dick Dievendorff]

I've seen N6XI tweak the resonance of his K3's speaker by slightly tightening or loosening one or more of the top screws that attach the speaker to the case.  

Dick, K6KR

-------------- Original message --------------
From: "Allan Taylor" <[hidden email]>

> 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?
>
> --
> 73 Allan K7GT
> _______________________________________________
> Elecraft mailing list
> Post to: [hidden email]
> You must be a subscriber to post to the list.
> Subscriber Info (Addr. Change, sub, unsub etc.):
> http://mailman.qth.net/mailman/listinfo/elecraft 
>
> Help: http://mailman.qth.net/subscribers.htm 
> Elecraft web page: http://www.elecraft.com 

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[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?
>

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