Accu hitch pins

Delwin D Fandrich pianobuilders@olynet.com
Fri Aug 9 14:51 MDT 2002


----- Original Message -----
From: "Fred Sturm" <fssturm@unm.edu>
To: <caut@ptg.org>
Sent: August 09, 2002 1:32 PM
Subject: Re: Accu hitch pins


> Del,
> How do the percentage figures correspond to degrees?
> Fred
>

A string deflection angle of 17 minutes (0º 17') of arc yields a string
bearing against the bridge of 0.5%. There are 60' of arc per degree.

Del



> Delwin D Fandrich wrote:
> >
> >snip<
> >
> > You can use the settings in the directions sent by Avery or follow the
> > general rule of 1.5% of string tension bearing against the bridge in
> > the treble section, easing off to 1.0% in the tenor and 0.5% in the
> > bass. Since bubble gages vary in how they read you'll have to find out
> > what each gradation means on the gage you're using. The
> > Baldwin-designed gage is set up so that each gradation indicates 17
> > minutes of arc. Or, translated, 0.5% of string tension bearing against
> > the bridge.
> >
> > Del
> >



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