False Beats ??

Richard Brekne Richard.Brekne@grieg.uib.no
Sat, 02 Sep 2000 00:04:47 +0200


One other question Ron... God I hope I havent already asked this one...

What difference does the type of metal the bridge pin is made out of have in
relation to all this.. Hard vs soft... stiff vs flexible.. etc.. any thoughts ?

Ron Nossaman wrote:

> >   This is about using cheap wood for bridges and their caps.  You have loose
> >bridge pins and they will produce false beats until replaced with larger
> >ones, or the holes have a treatment like CA or expoxy.   Angle of the pins
> >may be a factor in the durability of the wood, but I believe it is primarily
> >a materials problem
> >
> >Regards,
> >Ed Foote
>
> Not necessarily. The same loose pinned false beats happen in the revered
> "FinestKind" pianos of world renown. Poor quality soft cap material will
> aggravate the process, but wide humidity swings will make pins loose in the
> best cap. Also, I've gotta whack you about the oversized bridge pin
> suggestion. DON'T DO IT!!! It increases the stagger angle, stresses the
> wood, and accelerates the damage rate. Better to epoxy or CA an original
> size pin. Pin angle probably is a factor, but I don't know to what degree.
>
> Ron N

--
Richard Brekne
RPT, N.P.T.F.
Bergen, Norway




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