Weird ringing - HELP!!

[Joe And Penny Goss]

I hear a computer voice in the back ground WARNING WARNING ( Lost in
Space ).
Do not try that <G>you will make the touch very uneven.
Look else where for the solution first.
Joe Goss RPT
Mother Goose Tools
imatunr at srvinet.com
www.mothergoosetools.com
----- Original Message ----- 
From: "Ric Brekne" <ricbrek at broadpark.no>
To: <pianotech at ptg.org>
Sent: Thursday, July 27, 2006 1:25 AM
Subject: Weird ringing - HELP!!


> Hi all.
>
> IMB damper springs are regulated from a touch perspective only. When
> this is done correctly there will (always) be enough tension for them to
> function properly as dampers.  If dampers do not damp well enough
> despite proper spring regulation then you are dealing with damper
> seating, positioning or perhaps damper mass issues.  Much has been
> written about this through the years in the archives and I encourage you
> to check out some of the material there on the subject matter.
>
> Cheers
> RicB
>
> Greetings,
>
>          I am a newbie with a whopping 37 months in business. I have
> replaced
> damper felts and never worried about the tension in the damper springs.
The
> ringing subsided in the old uprights that I have done, however, the
ringing
> could have been less. I am doing a damper job right now for a lady and
> this time,
> I "massaged" the damper springs alittle to renew the tension,
>         Friday I am going to her place to put the action in and glue the
> dampers on the newly sanded blocks. I will see then the fruits (or not)
> of just
> bending those springs very sliiightly. I did it when I had the levers
> off and
> out while cleaning/sanding off the old felt in my shop.
>          Actually, I asked the list here, that same question, about
> messaging
> the old springs, and I guess no one caught the question, because I got no
> response, so I figured I would just go ahead and re-tension them
> slightly, Here's
> why:  I was told at tuning school that you can slightly bend the spring
> rail
> (hammer) springs to re-juvinate the tension in uprights and also I was
told
> you can do it to the repittiion springs in a grand. They basically work
> the by
> same principle as damper springs so I figured why not with the damper
> springs.
> We shall see, Friday.
>
>        So, I really cant give a definite answer on re-tentioning. I am
> guessing. I also know there is a way to measure the tension, but I dont
> know what
> gage to use or how to use it. This is on my list of things to check out.
>
> Julia Gottshall
> Reading, PA