[pianotech] Breaking bass string

[David Love]

That will tell you the tension but it won’t tell you the break point
percentage for which you will need the core dimension factored in.  The
issue with respect to this question of breakage is really at what BP% is the
string made.  

 

David Love

www.davidlovepianos.com

 

From: pianotech-bounces at ptg.org [mailto:pianotech-bounces at ptg.org] On Behalf
Of paul bruesch
Sent: Saturday, April 09, 2011 1:41 PM
To: pianotech at ptg.org
Subject: Re: [pianotech] Breaking bass string

 

It's the key sequence to enter on a calculator (it threw me off for a while,
too!)

On Sat, Apr 9, 2011 at 3:39 PM, Mike Spalding <mike.spalding1 at frontier.com>
wrote:

But there's still an extra equals sign, no?

On 4/9/2011 12:34 PM, John Delacour wrote:

I wrote:

> The tension in pounds is calculated by punching in the following:
>
>   l x f x d x = Ö 20000 =
>
> where l is the length in CENTIMETRES and f is the frequency in cycles per
> second and d is the overall diameter in CENTIMETRES.  I repeat
centimetres,
> NOT millimetres.

I forgot to specify the right character set in my last message, so the
division sign got mangled.

Here is the correct sequence:

*l x f x d x = ÷ 20000 =*

JD 

 

 

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