Longitudinal mode info

[Delwin D Fandrich]

----- Original Message ----- 
From: "Michael Spalding" <spalding48@earthlink.net>
To: "Pianotech" <pianotech@ptg.org>
Sent: October 12, 2003 9:32 PM
Subject: Longitudinal mode info


>
> List,
>
> Does anybody have a formula for determining the longitudinal mode
> frequencies of a wound piano string?  I just re-read Conklin's article at
> the "Five Lectures..." site, and listened to the demos.  I'd like to
learn
> more about how string scales are calculated to avoid longitudinal mode
> problems.
>
> Conklin mentions his 1970 patent, but doesn't give a patent number.
> Anybody have more info on this?
>
> thanks
>
> Michael Spalding
> spalding48@earthlink.net


The patent number is 3,523,480, issued Aug. 11, 1970 to Harold Conklin and
Assigned to Baldwin.

Del