scaling problem

[ed440 at mindspring.com]

Ed-

Since this is a first time restringing job, I assume this is not a 7' Bechstein in a concert venue.

The easiest solution would be to change the double unison to match the single.  You won't need to install a new hitchpin.  I.e. make 16, 16, 15.5  into 15.5, 15.5, 15.5  or if it's 16, 15.5, 15.5 make it 16, 16, 16.

Note that many less expensive pianos don't use any half size wire, so this will work out fairly well.

Having said that, at some point you will want to do more considered work. If you don't want to pay for rescaling, you can get _The Calculating Technician_ from PTG, make your own spread sheets and do it yourself.  You'll need some basic algebra and willingness to spend whatever time it takes.

Ed Sutton.....and remember: Two Eds are better than one!


-----Original Message-----
>From: ed miller <edmiller3 at hotmail.com>
>Sent: Apr 17, 2006 10:34 PM
>To: pianotech at ptg.org
>Subject: scaling problem
>
>I am restringing an entire piano for the first time.
>
>I have encountered a unison with 2 different sized wires in it (sizes 15.5 
>and 16). I am sure that this is the case (ie, this is not due to an 
>incorrect mesaurement).
>
>My question is....what are my options for restringing?
>
>The piano I am working on is my own project for learning purposes. I am 
>trying to spend as little money as possible (so I do not want to pay for it 
>to be rescaled... besides, isn't it too late since I can't take approriate 
>measurements with it already de-strung?).
>
>Should I restring it the way it was? Should I add some single strings to 
>make all unsions contain the same wire size within themslves? What 
>else.....?
>
>Thanks in advance.
>Ed
>
>