[CAUT] Gravalla Tension regulator

[Barbara Richmond]

Hi Ric,

Well, you might take a look at the August issue of the Journal and test for 
weights or riblets on the soundboard.  Or have you already tried that out?

Remember that big 'ol Seiler grand I was wrassling with a couple years years 
ago?  In October it's going to get at least one weight or riblet in the 6th 
octave which is wimpy.  I tested by clamping my small Vise-Grips on the 
bridge pins and the sound came right up.

Barbara Richmond, RPT
near Peoria, Illinois


----- Original Message ----- 
From: <ricb at pianostemmer.no>
To: <pianotech at ptg.org>
Cc: <Caut at ptg.org>
Sent: Monday, September 24, 2007 3:46 AM
Subject: [CAUT] Gravalla Tension regulator


> Sorry about the mispelling of the name... but I have a question I
> need some advice on about this device.
>
> I was looking at how this thing was going to fit into a Hamburg C
> this morning and found that the only placement that would allow for a
> flush fit for both flanges would require that I remove a small 1 inch
> wide piece of wood that runs from the joint between the rim and the
> belly rail.  I suppose this thing is meant to have some small
> stiffening affect... tho really its dimensions are so small I have to
> wonder if it has any real affect.  That said... I am of course
> hesitant to just yank it out of there.
>
> The other thing is that the belly rail on this Hamburg C looks
> actually quite massive. And I am wondering if the tension device
> would really be needed / make any real difference if installed.
> Anyone have any relevant experience they would share with me ?.
>
> This piano is a nice sounding thing ... no killer octave problems or
> the like... but I cant say it exactly sizzles with vibrancity
> either... hence I thought it might be fun to try this.
>
> What say ye ?
>
> RicB