[pianotech] A432 Tuning Fork

[Jim Moy]

I seem to remember the rule is "no devices in the room with a visual
display."

When I took my exam, they held on to my PDA and BlackBerry outside the exam
room.

Jim

On Wed, Jan 19, 2011 at 11:57 PM, Rob McCall <rob at mccallpiano.com> wrote:

> Since you mention Tunelab...
>
> I have the iPhone version which is calibrated with the NIST.  It plays a
> tone of A440 if you want.  Would that be something that could be used for
> practicing for the RPT tuning exam, and even the exam itself?  Is that
> allowed? It seems that since it's calibrated and it doesn't change if it's
> hot or cold, that it might be a good option.
>
> Regards,
>
> Rob McCall
>
> McCall Piano Service, LLC
> www.mccallpiano.com
> Murrieta, CA
> 951-698-1875
>
>
>
> On Jan 19, 2011, at 22:00 , Jim Moy wrote:
>
> > Since you're considering the electronic alternatives, you might take a
> look at Jim Coleman's 12/2008 article in the PTG Journal. Basically: tune
> the piano's 3rd partial of A4 a few bps sharp of a quartz oscillator's 3rd
> partial.
> >
> > Get yourself a good quartz reference metronome with an A440 tuning
> setting. I bought my second Seiko SQ-50 on eBay for $10. (My teenager
> commandeered my first for band.) Both were within 0.2 cents of 440, tested
> against my NIST calibrated Tunelab. If you're in a hurry, maybe you'll pay
> $25-30.
> >
> > Three times more accurate. Cheap as a fork. No drift with temperature.
> Sits next to you on the bench, so no bopping your knee, or vibrating your
> teeth. Of course you've got to worry about having a fresh battery in the
> oscillator, but you can do that long beforehand.
> >
> > Jim
>
>
-------------- next part --------------
An HTML attachment was scrubbed...
URL: <http://ptg.org/pipermail/pianotech.php/attachments/20110120/d3492884/attachment.htm>