A= 440 Fork - advice please

[Doug Hershberger]

John,
   What I mean is the accu-tuner is more accurate than either the accu-fork
or regular tuning fork. My accu-fork has to be adjusted more than once a
year with the little pot adjustment using the accu-tuner. It does drift. the
accu-tuner doesn't seem to.
Doug Hershberger
----- Original Message -----
From: John M. Formsma <jformsma@dixie-net.com>
To: <pianotech@ptg.org>
Sent: Thursday, October 28, 1999 8:04 PM
Subject: RE: A= 440 Fork - advice please


>    <<<<Caution; the Accu-fork or tuning fork for that matter are not as
> accurate as the Accu-tuner. It is my feeling that nothing we do aurally is
> as
> accurate as these electronic devices and nor does it need to be for
> providing the service we do to the musical world.>>>>
>
> Doug,
>
> What exactly do you mean by this statement?  Do you mean that it is easier
> to get A49 exactly to 440 Hz visually rather than aurally?  Or are you
> talking about the inherent deviations in any pitch source?  I remember
> reading in my Accu-fork manual that the fork needs to be recalibrated only
> once a year,  using, er, the SAT.
>
> Also, I thought that the Accu-fork was the preferred pitch source these
> days.  Why all this talk about using the metal things which vary with
> temperature?  Isn't the Accu-fork much more accurate because it does not
> fluctuate (compared to a metal fork) with temperature?  Just curious and
> would like to hear some of the reasons why...
>
> John Formsma
>