Striking point, string coil

William R. Monroe pianotech at a440piano.net
Thu May 29 18:15:26 MDT 2008


Alicia,

Yes, IMO having tight coils on the tuning pins is important for tuning stability.  Again, IMO.  Why the coils aren't tight is another issue.  I'd recommend before you tune it again, lower the pitch on each pin enough to use a coil lifter and get them all tight and tidy.  Then tune.  Then watch over time.  It's possible the coils may loosen over time with repeated tuning if the angles were drilled poorly in the pinblock.  Also possible to have the coils crossing over one another from improper angles, or more commonly (particularly in the bass) coils in which the wire starts crawling up on top of the coils from a top bridge that is too high above the tuning pin field.

As far as the strike point issue, David Love gave you some very good information, and I really haven't anything to add to it.

William R. Monroe
  SNIP 
   
  Also, how important is string coil on the tuning pin, last tech who put a set of new strings in, left the coils all "un-neat" looking (if thats actually a word). 

  SNIP

  Last I cheked  (whch was now) my piano hammers are shapped just right, and the tone they produce is just how I like it. Basically I'm not shy of wearing off hammers to give them a decent voicing, and shaping. Yet I still cant find the sweet spot in the bass...
   
  Alicia

   
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