Bechstein false beats.

[Peter Kestens]

Newton,

At least I have  a little bit of time to read and answer all my mail.
Thanks a lot for your reply, I'm going to check it the way you dezcribed it.
How are you?  Are you going to stop tuning ...?  I've thought to buy your
books and journals but sending them to me would be rather costly I think.
So I don't have asked it.   Let me also telling you Ireally was surprised by
reading your mail.
How is health?
I'm fine and so is my family.  I only hope you still join this list because
I like reading your mails.

Greetings from a rather cold and wet Belgium.

Peter
-----Oorspronkelijk bericht-----
Van: Newton Hunt <nhunt@jagat.com>
Aan: pianotech@ptg.org <pianotech@ptg.org>
Datum: vrijdag 26 maart 1999 18:37
Onderwerp: Re: Bechstein false beats.


>Hello Peter,
>
>There are many potential sources of false beats but the three most
>likely are:
>
>1.   Loose bridge pins.  Take a small tool and press gently against a
>bridge pin and see if the beats change.  Look for hair line cracks in
>the bridge.  The best solution for this situation is CA glue carefully
>dripped down the side of the pin until the entire hole has been
>filled.  When hard the pin will not move at all.
>
>2.   Strings are not seated firmly on the bridge.  Take an upright
>hammer shank and use a small pliers or similarly heavy object and
>lightly take the string down on the bridge side of the strings.  Check
>the bearing and make sure it is not negative or the front of the
>bridge is lower than the back side of the bridge.
>
>3.   Inadequate deflection angle at the agraffe end.  With a small
>hook lift a string on the non speaking side of the agraffe and see if
>it changes.
>
>Termination's are generally the source of the problem but as has been
>discussed sometimes the soundboard and bridge designs are the source,
>which is a much more difficult problem to solve.
>
>Hope all is well with you and yours.
>
> Newton
>
>