[pianotech] Tuning Forks and their origin & calibration

[Paul T Williams]

Sorry, I wasn't thinking right.  My brain was working sdrawkcab ;>)



From:
Jason Kanter <jkanter at rollingball.com>
To:
pianotech at ptg.org
Date:
01/21/2011 06:04 PM
Subject:
Re: [pianotech] Tuning Forks and their origin & calibration



When you warm the fork, it goes flatter. 

On Fri, Jan 21, 2011 at 2:07 PM, Paul T Williams <
pwilliams4 at unlnotes.unl.edu> wrote:
... I took my fork and; and 64 degrees compared to the "phone dial", it is 
close to A440...a little flat. I warmed the fork for a few minutes in my 
pocket to probably A-440.5. My fork was flat as I first thought on the 
first try.  The second try was only a minute later, so probably not up to 
68.5, so what a thing! ...

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