SAT and K&C

[Mike Kurta]

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SAT and K&CHi Dave:
I too, have seen an occasional negative FAC number, and I also don't =
know what it means.  I'd be interested in knowing.  FWIW, on a vertical, =
in small print, I write the FAC numbers on the hammer moldings or on the =
sides of the hammers if its a nice new piano, and on grands, I record =
the numbers to the right of the tuning pins on the plate with a fine =
point marker pen.  The music desk covers these small numerals when in =
place, and it eliminates measuring the numbers next time I come to tune. =
 They change ever so slightly, or not at all on the same piano.  Will =
look for you all in Chicago.......Mike Kurta
  ----- Original Message -----=20
  From: Dave Doremus=20
  To: pianotech@ptg.org=20
  Sent: Wednesday, May 29, 2002 12:11 AM
  Subject: SAT and K&C


  I tunes a brand new Kohler and Campbell KIG-47 today. Aside from all =
the damper problems I was struck by one thing. When doing the FAC on my =
SAT III (too many initials I know), the F reading came out -2.2 cents. I =
was expecting maybe +18. First time I've seen a negative reading. I did =
the pitch raise (25 c) with that calculated tuning and then did a =
pickier pass by ear and it came out fine. But I was curious if anyone =
else gets negative inharmonicity readings on cheap pianos and what it =
might mean.....

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