[CAUT] Killer half-octave

[Bob Hull]

--- Chris Solliday <solliday at ptd.net> wrote:

, I would add
> channeling hammershanks right down to and through
> that section (personally I do the whole piano
> tapered by weight). This will stiffen the shank and
> also reduce the shank weight making the hammer more
> prominent (theory>  Chris Solliday

I guess channeling is the same as tapering?  Are you
saying a tapered or thinner shank is "stiffer"? 
Please explain.  Is it because there is less weight
and weight adds to the whipping effect as inertia is
being overcome? Are you tapering beyond (in addition
to) the tapering that comes in a set of tapered
shanks?  
Bob Hull 


>   ----- Original Message ----- 
>   From: Porritt, David 
>   To: College and University Technicians 
>   Sent: Wednesday, May 16, 2007 2:57 PM
>   Subject: Re: [CAUT] Killer half-octave
> 
>  > 
>   dporritt at smu.edu
> 
> 
>
------------------------------------------------------------------------------
> 
>   From: caut-bounces at ptg.org
> [mailto:caut-bounces at ptg.org] On Behalf Of David
> Love
>   Sent: Wednesday, May 16, 2007 12:08 PM
>   To: 'College and University Technicians'
>   Subject: Re: [CAUT] Killer half-octave
> 
>    >   -----Original Message-----
>   From: caut-bounces at ptg.org
> [mailto:caut-bounces at ptg.org] On Behalf Of Porritt,
> David
>   Sent: Wednesday, May 16, 2007 5:48 AM
>   To: College and University Technicians
>   Subject: [CAUT] Killer half-octave
> 
>    
> 
>   Esteemed colleagues:
> 
>    
> 
>   Our NY D, (1983) has developed - in the last year
> or so - a killer half-octave from about A#5 - E6. 
> I've added some mass to the bridge right under C6
> and that helped a little but the problem remains. 
> I've been searching through the archives this
> morning checking for any further heroic measures I
> could take within the confines of my budget.  
> 
>    
> 
>   What's the general consensus of opinion about the
> "Treble Tone Resonator" that Pianotek sells?  While
> my current budget precludes a full remanufacturing I
> think I can manage the $155.00 for that!  However, I
> don't want to spend even that  - nor expend the time
> installing it  - if it wouldn't help.  
> 
>    
> 
>   Any ideas, suggestions, experience with it
> etc.?????
> 
>    
> 
>   dave
> 
>    
> 
>   __________________________________
> 
>   David M. Porritt, RPT
> 
>   Meadows School of the Arts
> 
>   Southern Methodist University
> 
>   Dallas, TX 75275
> 
>   dporritt at smu.edu
> 
>    
> 



 
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