Dummy Damper/Keith

[Carl Meyer]

If the collective damper springs can push the rod out of the way, what about
the one spoon that is slightly misadjusted?  It doesn't have enough force by
itself to push the rod.  That damper will ring.

It's important that the rod not be in contact with any dampers in its off
position.  Some meet that without the dummy damper.  If it doesn't you need
it.

Carl Meyer Ptg assoc
Santa Clara, Ca.


----- Original Message ----- 
From: "Keith McGavern" <kam544@gbronline.com>
To: "Pianotech" <pianotech@ptg.org>
Cc: "Joseph Garrett" <joegarrett@earthlink.net>
Sent: Saturday, November 29, 2003 10:36 AM
Subject: Re: Dummy Damper/Keith


> At 8:31 AM -0800 11/29/03, Joseph Garrett wrote:
> >... I add
> >a dummy damper to many, to eliviate the slight pressure that an
> >out-of -balance lift rod will cause against the damper levers. Makes the
> >slight "over-ring" go away, big time!<G>
>
> Joe,
>
> Those must be some mighty weak damper lever springs to allow that
> lift rod to exert enough weight against the levers to cause
> over-ring. Mighty weak! Given that, by adding a dummy damper, you are
> only applying a corrective measure to a situation that was already in
> dire need of help.
>
> Definitely a great shortcut idea to avoid replacing the springs though.
>
> I guess by out-of-balance you are saying not a straight rod. Yes/No?
>
> Regards,
>
> Keith McGavern
> Registered Piano Technician
> Oklahoma Chapter 731
> Piano Technicians Guild
> USA
>
>
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