FAC Numbers

[John Ross]

Hi Phil,
The preloaded FAC #'s, are an average of a few pianos.
I think that was how they were figured out.   You could have, for
example 10 Yamaha U1's, and there FAC #'s would probably be different.
Even the same piano, can have different FAC #'s, depending on how
different the humidity was. At least that has been my findings, over the
years.
I usually take new FAC #'s each time, after all, it takes a negligible
amount
of time. For a while I used to mark them down with the humidity reading,
intending to see if there was a pattern, but I kept on forgetting
periodically.
So my test went by the wayside.
Regards,
John M. Ross
Windsor, Nova Scotia, Canada.
----- Original Message -----
From: "pryan2" <pryan2@the-beach.net>
To: <pianotech@ptg.org>
Sent: Monday, June 19, 2000 10:12 PM
Subject: Re: FAC Numbers


> When I bought my SAT III,  I thought 165 piano FAC numbers were a vast
> expansive ocean, but soon learned that they are only a drop in the bucket
> compared to the number of makes and models  of pianos one runs across.
I'd
> like to see a booklet of FAC numbers for every conceivable piano that one
> could type in the three numbers and start tuning.  I'm an optimist.
>
> Phil Ryan
> Miami Beach
>