annoying posts - new solutions

[carl meyer]

Dan:  Since they are round they are rods not bars.  Picky,picky.  I
don't
know how they are adjusted.  Maybe not at the factory since I once saw a
new mh vertical in a store several years ago and since it was the first
one I'd seen I looked in the back and sure enough the nuts on the
adjustment were finger tight (finger loose?).  So much for quality
control
or doesn't it matter where it is? Huh?

Carl Meyer
Santa Clara, Ca.

Daniel Jackson wrote:
> 
> Hi all,
>         See if this helps. I've a tech question about distortion or overtones
> that are undesirable.
>         I service an old rebuilt M&H BB...a nice instrument. Down in the lower
> tenor close to the break there is a "noise" that sometimes sounds like
> an extraneous buzzing but on close examination seems to be more firmly a
> part of the piano. I wonder sometimes if it has to do with the torsion
> bars underneath. It is predominate on one note in particular. It's not
> in the hammer or voicing.
>         How are those torsion bars torqued or tuned? I'm not thinking of
> messing with them...just want to know. I believe it's something to do at
> the time of building/rebuilding...like setting the plate. I am way off?
>         I just tuned a S&S D for a concert last night - pretty great piano and
> new. I noticed that the last tenor note just before the break had a
> rather noticable bad overtone noise - for want of a better discription.
> I'm quite sure it was not from the duplex area or a problem at the
> agraffe.
>         I put these two problems together as the noises are not that different
> from each other. This is to the best of my memory.
>         Comments?