False Beats ??

[Richard Brekne]

Don wrote:

> Hi Richard,
>
> You have effectively increased the mass and therefore the moment of inertia
> of the bridge pin. I would be very tempted to try a drop of thin CA glue on
> the pins--even if they appear to be tight.
>

Hmmm I was thinking of this possibility as well.. but it seemed a bit unlikely..
not much mass in the thin screwdriver... seemed more related to downward
pressure on the bridge by the pin (or perhaps by anything that could apply the
pressure ???) or perhaps an increase in the stiffness of the bridge pin ???

I will try and apply some CA to the next one of these I run into... I have
several at the UiB that exhibit the same kinda falsness. Still, as I said in
other replies.. I was amazed at the completness of the elimination of beats...
and by the slowing down of the beating directly relating to the amount of
pressure I applied.

Couldnt help thinking there must be some way to modify the bridge / bridgepin
configuration to create this situation on a more permanant basis.

>
> At 06:38 PM 09/01/2000 +0200, you wrote:
> >Hi guys and gals....
> >
> >Placing a straight slot screwdriver between two bridge pins, and wedging
> >one of them over so as to slightly increase the sideways pressure on the
> >string totally eliminated the false beats. I thought maybe this had
> >something to do with the screwdriver coming in contact with two bridge
> >pins, so I tried just pushing sideways a bit on one pin and the same thing.
> >Repeated this on about 15 strings with false beats and the same thing every
> >time. We are not talking just a reduction of the false beatings intensity..
> >It out and out disapeared. Course it comes back when you release the
> >pressure... but this got me scratching my head.
>
> Regards,
> Don Rose, B.Mus., A.M.U.S., A.MUS., R.M.T., R.P.T.
>
> Tuner for the Saskatchewan Centre of the Arts
>
> drose@dlcwest.com
> http://donrose.htmlplanet.com/
>
> 3004 Grant Rd.
> REGINA, SK
> S4S 5G7
> 306-352-3620 or 1-888-29t-uner

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