Two felts better than one? / was: Andre's Front Punchings

[Cy Shuster]

Could it be the air gap effect, like between knuckle core and cover, and in the layers of the whippen heel?

--Cy--
ABQ, NM
  ----- Original Message ----- 
  From: Jurgen Goering 
  To: pianotech at ptg.org 
  Sent: Wednesday, February 06, 2008 10:20 AM
  Subject: Re: Two felts better than one? / was: Andre's Front Punchings


  Many pianos had a thin felt strip (1.5 - 2 mm) underneath the back rail cloth. It appears that 2 mm of felt under 5 mm of cloth is more quiet than one 7 mm strip of cloth.

  Can anyone corroborate this?

  Jurgen Goering

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