soundboard causing buzz?

[Michael Gamble]

Hello Bec and John and List
I once had a very unusual buzz. It moved around the middle - to - bass area 
and was never to be found on the same note. Turned out to be a large ball 
bearing trapped between the metal frame and the sound board. Spooky...
Regards
Michael G.(UK)
----- Original Message ----- 
From: "Bec and John" <bjsilva001@comcast.net>
To: "Pianotech" <pianotech@ptg.org>
Sent: Tuesday, April 05, 2005 10:57 PM
Subject: Re: soundboard causing buzz?


> Hi,
>
> I've tried out various things, some of which were suggested by some on 
> this list (thanks!). I'm still not able to conclusively discover the 
> cause.
>
> Some new information: If I take the lid, when completely closed, and push 
> it with a lot of force to the right (while facing the keyboard) it either 
> reduces or eliminates the buzz. I can't imagine that I am able to push it 
> hard enough to bend the rim to reduce any potentially looseness of the 
> soundboard against it, so I checked that the lid was on tight, and it was.
>
> The buzz is still coming and going, and has spread to a few other notes 
> along the keyboard. And actually, it sounds more like a snare drum 
> responding to vibration than a buzz.
>
> Any further thoughts?
>
> Thanks!
>
> - John
>
>