FAC database

[John Ross]

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Hi List,
I have questions regarding saving of FAC #'s.
I have found FAC #'s are different on pianos of the same make and model,
so there is nothing gained by saving the numbers.
I found the FAC #'s seem to change from season to season on the same
piano.
I would like to know, the why on this one. I think it would have to do
with the humidity. I can take the FAC #'s 2 or 3 times in the one day
and they are the same so I don't think it is my tecnique.  I am not
talking about differences of .1 or .2 cents either.
These pianos include concert grands, and are in a University.
I meant to tabulate the FAC's and humidity, but I keep on forgetting.
I think the FAC tunings Al supplies are averages of a few.
Regards,
John M. Ross
Windsor, Nova Scotia, Canada

Del Gittinger wrote:

> Bill, I used to save all the FAC numbers and whatever adjustments I
> did for each make/model of piano.  I had my SAT II memory maxed out to
> 206 pianos, etc.  Then I realized that I only needed to store tunings
> for the special "concert" tunings to high quality pianos with high
> quality performers.  The rest of the pianos, especially the small
> instruments, get their FAC numbers recorded in the piano the first
> time I tune it.  Then each time I return to that piano the FAC numbers
> are already there - no need to re-measure. BTW there are ways to be
> sure the FAC numbers (and the 88 note tuning it generates) are the
> best for that piano.  Ron Berry's class describes various ways to be
> sure the octave stretch (the A4 number) will give smooth transitions
> across the octaves.  Also, there probably isn't any way to get a
> "concert" tuning out of Betsy Ross and Lester spinets and attempting
> to do so will eat up a  lot of valuable time.  If the piano owner can
> hear the difference they should get a bigger, better instrument. Del
> Gittinger, RPT
> Del's Music Studio, Marion, OH
> Piano Tuning & Service
> Electronic Instrument repairs including organs
> delgit@acc-net.com
>
>      ----- Original Message -----
>      From: BSimon999@AOL.COM
>      To: pianotech@ptg.org
>      Sent: Wednesday, November 10, 1999 12:46 PM
>      Subject: FAC database
>       I have the list of FAC numbers for good quality grands, and
>      some excellent
>      uprights, that Inventronics puts out.
>
>      Most of the pianos I see are DEFINITELY NOT good quality
>      pianos.
>
>      I was wondering about the feasibility of a list of FAC
>      numbers for the Betsy
>      Ross spinets, the  Lesters, etc.  Does a secondary list of
>      these exist?
>
>      If not, I might be willing to start compiling a list of FAC
>      numbers
>      discovered by list members, to be available free of charge
>      to whoever wants
>      it. Necessary, though, would be name of piano,
>      height/length, FAC, etc.
>
>      Any interest? Any problems in doing such a thing, or has it
>      been done already?
>
>      Bill Simon
>      Phoenix
>

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