Temperature and the Tuning Fork

[paul bruesch]

Like everything else, but particularly item made of steel, tuning forks
expand and contract as the temperature rises and falls.

If one is to become an RPT, one needs to know at what precise temperature
one's fork rings a true 440. In order to calibrate it, one must file the
bottom of the slot (to make the tines longer) to flatten the fork, or file
the tips to shorten the tines and sharpen the pitch.

A fine tuning fork should always be stored, when not actually in use, in a
velvet-lined leather sleeve, which in turn is kept in a humidor box for
precise humidity and temperature maintenance.

On Thu, Jun 26, 2008 at 8:21 PM, Matthew Todd <toddpianoworks at att.net>
wrote:

> Hi,
>
> On p. 9 of this issues journal, can you explain the temperature/tuning fork
> relationship?  What is the purpose of being able to keep track of it's
> temperature?  Also, what is the best way to store a tuning fork, and how do
> you get it calibrated?
>
>
> Many thanks,
> Matthew
>
-------------- next part --------------
An HTML attachment was scrubbed...
URL: https://www.moypiano.com/ptg/pianotech.php/attachments/20080626/4428394b/attachment.html