string termination

Joe And Penny Goss imatunr@srvinet.com
Sun, 14 Aug 2005 17:11:43 -0600


Yeh I know. See what you started, The Quest for the Holy String Termination.
<G>
Like I said Good luck.
Joe Goss RPT
Mother Goose Tools
imatunr@srvinet.com
www.mothergoosetools.com
----- Original Message ----- 
From: "Carl Meyer" <cmpiano@comcast.net>
To: "Pianotech" <pianotech@ptg.org>
Sent: Sunday, August 14, 2005 4:10 PM
Subject: Re: string termination


> Thanks, Joe.  Common cents don't keep up with inflation these days.
>
> Yes, I've got lotsa response.
>
> Carl Meyer PTG assoc
> Santa Clara, Ca.
>
>
> ----- Original Message ----- 
> From: "Joe And Penny Goss" <imatunr@srvinet.com>
> To: "Pianotech" <pianotech@ptg.org>
> Sent: Saturday, August 13, 2005 5:41 PM
> Subject: Re: string termination
>
>
> > Well Carl,
> > If you wants common cents <G>
> > When I's plucks my bass pulling the string in a up motion on my bass I
> > gets
> > a ping sound. If it is pulled to the side, more of a deep full bassey
> > sound.
> > But that is probibly not the kind of answer you are after. Also the same
> > kind of results of a sort if the string is excited near the bridge, a
thin
> > sound. And away from the bridge a deeper fuller sound. Your search may
> > raise
> > more questions for you.
> > Hope you can find your answer.
> > Joe Goss RPT
> > Mother Goose Tools
> > imatunr@srvinet.com
> > www.mothergoosetools.com
> > ----- Original Message ----- 
> > From: "Carl Meyer" <cmpiano@comcast.net>
> > To: <pianotech@ptg.org>
> > Sent: Saturday, August 13, 2005 6:12 PM
> > Subject: string termination
> >
> >
> >> A lot of things about string terminations have bugged me for some time.
> >>
> >> Ron Overs (who I respect) promotes hardening of the capo bar, yet the
> >> agraffe is a relatively soft material (brass).  The difference is that
> >> the
> >> capo is straight and the agraffe is round.  Wouldn't the agraffe last
> > longer
> >> if it were heavily plated with chrome, nickel or??  Oh I forgot, piano
> > techs
> >> love brass, felt and wood.
> >>
> >> Now under normal circumstances, the piano string is terminated
(pivoted)
> > on
> >> the top surface of the agraffe.  Let's call that North.  Let's call the
> >> bottom of the agraffe South.  The other two surfaces would be called
east
> >> and west.
> >>
> >> At the bridge, the string is terminated at maybe SSE (south south
east).
> >>
> >> Wapin claims that their vertical bridge pin encourages the string to
> > vibrate
> >> in the horizontal direction quicker before the energy has been
dissipated
> > in
> >> the vertical mode and hence -longer sustain.
> >>
> >> Let's make it a given that the impact of the hammer is in a northern
> >> direction.
> >>
> >> Stuart of Australia claims that their bridge termination increases the
> >> vertical vibration of the string.   Hmmmm?  How does that effect the
> >> sustain????
> >>
> >> My esteemed colleuge from one of the fly over states suggests that a
> > string
> >> starts out vibrating vertically, slowly starts to drift horizontally
but
> >> never gets to true horizontal.  He also suggests that a string tends to
> >> vibrate at 90 degrees of its termination.  I want to find out if that
is
> >> true.
> >>
> >> I don't really know, but it has been my assumption (maybe in error)
that
> > the
> >> string vibrated vertically, slowly drifts elliptically, approaches
> >> horizontal, then elliptically in the other direction and then returns
to
> >> vertical at a much lower level.  This would then be a cyclical
> >> phenomenon.
> >> Sorry for the flurry of five dollar words.
> >>
> >> I've been thinking of a new bridge termination scheme for rebuilding
but
> >> I'm not going to proceed till I answer a basic question.
> >>
> >> Here's my question:  A vibrating string has two terminations.  It is
> > excited
> >> in the northern direction.  (Ignore the strike point)  What effect on
> >> tone
> >> will be the termination of the two ends of the string????? Both north,
> >> one
> >> north and the other south, east or west????   Or no big difference??
> >>
> >> I have recently found plans on the net to build an led stroboscope.  I
> > will
> >> build this and look at a string under vibration. I could stretch a wire
> >> across my garage and look at it with different terminations.
> >>
> >> If some of you deep thinkers have an answer to my question that makes
> > common
> >> sense, I won't have to do this.  Give me your feedback.  Thanks
> >>
> >>
> >>
> >>
> >> _______________________________________________
> >> pianotech list info: https://www.moypiano.com/resources/#archives
> >
> > _______________________________________________
> > pianotech list info: https://www.moypiano.com/resources/#archives
> >
>
>
> _______________________________________________
> pianotech list info: https://www.moypiano.com/resources/#archives


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