[pianotech] bobbling hammers and jack spring tension (Mannino)

[Ed Sutton]

Based on what Don wrote, I am wondering if this may be due to damper springs made heavier at this point.
Ed S.
  ----- Original Message ----- 
  From: Ryan Sowers 
  To: pianotech at ptg.org 
  Sent: Sunday, January 25, 2009 1:17 AM
  Subject: Re: [pianotech] bobbling hammers and jack spring tension (Mannino)


  I have noticed this same thing at the bass/tenor break. 


  On Sat, Jan 24, 2009 at 12:13 PM, Steve Blasyak <atuneforyou at gmail.com> wrote:

                subject Bobbling hammers and jack spring tension (Mannino) 

               
               

               
         
         
         


    Has anyone noticed that this seems to occur frequently on Asian pianos that have the graduated rake for three or four notes right at the break. Some one once told me, I'm not sure who, that it was a geometry thing with the longer hammer shanks.

    Thanks Don for taking the time to explain this. 

    Steve Blasyak
    Orange County Chapter

    Pura Vida 



  -- 
  Ryan Sowers, RPT
  Puget Sound Chapter
  Olympia, WA
  www.pianova.net
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