[CAUT] pre-stretching new string?

[Scott E. Thile]

Ok, I get it. Thanks for the clarification.

Maybe you guys are right, but it seems counterintuitive to me that the board
is not a major contributing factor due to it's size and the fact that it is
captured in the rim and has rise and fall (or try too).

Is it possible that tension could increase in response to the upward force
while also containing the upward movement, or is that impossible?

Scott

> -----Original Message-----
> From: caut-bounces at ptg.org [mailto:caut-bounces at ptg.org] On 
> Behalf Of Ron Nossaman
> Sent: Thursday, June 07, 2007 12:20 PM
> To: College and University Technicians
> Subject: Re: [CAUT] pre-stretching new string?
> 
> 
> 
> > Hello Ron and list,
> > 
> > Very interesting ideas in terms of string length, but what about 
> > changes in tension?
> 
> You change tension in tuning by turning pins and changing 
> string length. Shortening the string, or lengthening the path 
> will raise the tension. What I'm talking about is changes in 
> path length, therefor changes in tension. The un-stretched 
> string length isn't changed.
> 
> 
> > I've always assumed that the main thing going on with 
> seasonal pitch 
> > changes was a result of adding and reducing tension due to the rise 
> > and fall of the board as it reacts to changes in it's moisture 
> > content.
> 
> That's what we've always been taught, but the numbers don't 
> come close to supporting it.
> 
> Ron N