acrosonic, Baldwin

[Michael Gamble]

This is a multi-part message in MIME format.

---------------------- multipart/alternative attachment
Hello List, Alan M et al. who say, collectively:
"OK, for arguments sake, let's say the overring is not due to improper =
damping of the strings.  What then?  I've had a few of these instruments =
that just keep going with this kind of deep resonance, after all playing =
has ceased and all the checks for improper damping show zip.  What else =
could it be and can it be stopped?

William R. Monroe
Assoc.
Madison, WI
  ----- Original Message -----=20
  From: David Skolnik=20
  To: Pianotech=20
  Sent: Wednesday, March 17, 2004 4:47 AM
  Subject: Re: acrosonic, Baldwin


  Alan-

  In addition to the suggestions you've already received, take a look at =
the condition of the damper felt, which, if original, is somewhere =
between 45 and 55 years old.  It's typical, especially for the single =
string (low bass) dampers, to respond to drying out (thus hardening), by =
an unmistakable "slappy-buzz" when returning to the string.  This loss =
of resilience could also permit the over-ring you notice.

  David Skolnik RPT
  Hastings on Hudson, NY


  At 07:40 PM 3/16/2004 -0800, you wrote:

    I have this piano I service that has a lot of over ring when you =
stop playing. I've tested each note to see if there is any single note =
that doesn't completely dampen - they all do. The pedal is also adjusted =
with some lost motion. Is there a cure for this. The piano is about =
1950ish.
    =20
    Alan Meyer RPT
    Las Vegas
My input: (FWIW)=20
This so-called "over-ring" (known as "hanging on" in UK) is possibly due =
to the dampers not covering enough nodal points. Many uprights have what =
is, in UK, known as "fly-dampers" where an extra damper is added to the =
main damper and attached to it via a wire. The hammere strikes the =
strings between the main damper and the "fly damper". I suppose the =
undamped top section isn't extra lively? But you say "deep resonance". =
My gut feeling is that the damper felts need replacing - imagine! =
they've been crammed against the same old strings by spring pressure for =
the last 55 years or so.=20
My 2pence worth.
  :-)
Michael G (UK)
---------------------- multipart/alternative attachment
An HTML attachment was scrubbed...
URL: https://www.moypiano.com/ptg/pianotech.php/attachments/0e/72/c6/70/attachment.htm

---------------------- multipart/alternative attachment--