L.O.S.S.

[Isaac OLEG]

Just worked on a Steinway B where the super tech that did the repair
for the 1/3 of the price of the S&S workshop (changed only heads
(Abel), strings and tuning pins for that price), sprayed the agrafes
on the plate.

I had a few of these donging strings for sure, too bad, as the problem
don't came from the board in that case ;  see : there was lacquer on
the bridge pins end, and lacquer on the capo, and lacquer on the
agrafes .

Cleaning have helped on some strings , it is  difficult to stay quiet
saying to the customer (a well known orchestra) that their reparation
choice was not as efficient as they believe.

Isaac OLEG



> -----Message d'origine-----
> De : pianotech-bounces@ptg.org
> [mailto:pianotech-bounces@ptg.org]De la
> part de Delwin D Fandrich
> Envoyé : vendredi 11 octobre 2002 18:09
> À : Pianotech
> Objet : Re: L.O.S.S.
>
>
>
> ----- Original Message -----
> From: <Tvak@aol.com>
> To: <pianotech@ptg.org>
> Sent: October 06, 2002 7:44 PM
> Subject: L.O.S.S.
>
>
> > Why is it that some strings on a piano exhibit Lack Of
> Sustain Syndrome?
> I
> > prep new pianos at a local dealer and I find that there
> are unisons in the
> > treble (octave 5 or 6) that have notably less sustain than their
> neighbors.
> > I'll be tuning along, each note singing, DINNNNNN,
> DINNNNNN, and then I
> come
> > to its neighbor, DINK.
> >
> > There are some things we can eliminate, like the damper
> not lifting, or
> the
> > hammer double striking or blocking against the string.
> These pianos have
> > been regulated from square one (key height and dip).  The
> strings have
> been
> > seated to the bridge and there are no false beats
> whatsoever.  It's not my
> > unison tuning because it can be heard in the individual
> strings of the
> > unison.  They are also NOT low quality Asian imports.
>
> No, it's not your unison tuning. It's a soundboard design
> problem and you
> won't fix it with anything you do to the hammers or the
> action. Sometimes
> you can make it less bad....
>
>
> >
> > If anyone has an idea, I'd be interested to understand
> why one perfectly
> good
> > brand new string vibrates better than the one right next to it.
>
> It probably doesn't. Most often this effect is attributable
> to soundboard
> resonances. Occasionally a plate resonance.
>
> Del
>
>
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