Vibrations: Example

[Garret Traylor]

We once found a buzz in a hollow key lead.  Seems when this particular key
lead was manufactured, a droplet of lead inside the hollow lead had broken
off and was bouncing around in the space when a certain frequency was
produced.  It took four pianos technicians and at least as many days to find
it.  Technician of the day was David Pitts who localized the buzz with a
stethoscope.  The dissection showed all the characteristic of how the lead
droplet formed.  I think it was a Steinway B. 

Kindest Regards,

Garret 

 

From: pianotech-bounces at ptg.org [mailto:pianotech-bounces at ptg.org] On Behalf
Of tom
Sent: Tuesday, June 17, 2008 8:06 AM
To: 'Pianotech List'
Subject: RE: Vibrations

Subject: Vibrations

Can some of you, based on your experiences, provide me with areas to begin
looking for vibrations of certain notes?  The problem is not buzzing because
of loose ribs.  I have a client with a Baldwin grand, and she said there are
vibrations on only a few notes, and I want to begin troubleshooting.

 

So, any ideas on where to begin looking would be appreciated.

 

Thanks so much,

-------------- next part --------------
An HTML attachment was scrubbed...
URL: https://www.moypiano.com/ptg/pianotech.php/attachments/20080617/4d83f4cd/attachment-0001.html