Damper felt replacement

[Delwin D Fandrich]

If the problem is with the higher partials ringing through in the bass section,
added mass will probably help. 
 
The springs need to be strong enough to firmly seat the damper heads against the
strings. 
 
There needs to be some (not a huge amount, but some) follow-through when you
press against the strings.
 
The damper wedges need to be reasonably well spaced and matched to the strings.
 
Del
Delwin D Fandrich
Piano Design & Manufacturing Consultant
620 South Tower Avenue
Centralia, Washington 98531  USA
Phone  360.736-7563
<mailto:fandrich at pianobuilders.com> 

 


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From: pianotech-bounces at ptg.org [mailto:pianotech-bounces at ptg.org] On Behalf Of
Cy Shuster
Sent: July 01, 2007 6:26 AM
To: Pianotech List
Subject: Re: Damper felt replacement


It's impedance matching.  Mass helps the bass strings better; springs help the
treble better (if I remember right).
 
--Cy--

----- Original Message ----- 
From: vince  <mailto:madvinmryk at yahoo.com> mrykalo 
To: pianotech at ptg.org 
Sent: Saturday, June 30, 2007 11:49 PM
Subject: RE: Damper felt replacement

Let's see, the spring action dampens the fundamental more, and mass affects the
dampening of the partials...or is it the other way around...no, i think i was
right the first time.  Right?


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