Pitch Raise Overpull, was:cracked plate

[Farrell]

>>>but I
> > >usually rough it in to pitch and then use the ETD with overpull for the
> > >SECOND pass.

This is what Todd indicated that he did - pulled it up to pitch the first
pass, and then used the SAT overpull to have it end up at pitch after the
second pass from about 35 to 40 cents flat.

> > >Is there a ceiling?

With the SAT - no.

>>This wasn't mentioned yet but Todd reported that he set the SATIII
>>for a 25% overpull. Does anyone else think that this might be a tad
>>extreme for the bass section?

He did say that. He did it from about 35 cents flat, which would yield an
overpull of perhaps 9 cents - not too terribly extreme for bass, although I
usually use about 20% overpull in the bass instead of the 25% calculated by
the SAT.

Terry Farrell

----- Original Message -----
From: "Greg Newell" <gnewell@ameritech.net>
To: <pianotech@ptg.org>
Sent: Friday, December 14, 2001 12:03 AM
Subject: Re: cracked plate


> Dear Don Rose, B.Mus., A.M.U.S., A.MUS., R.M.T., R.P.T.,
>
>     I never suggested that there was a relevance. I could however see that
if
> there was a weak area of a plate it could be compromised by adding a 25%
overpull
> from say 100 cents or more down. It seems that this could only happen if
the
> plate were weak already however. I doubt that even that extreme of an
overpull in
> the bass could crack a well cast plate. Clear?
>
> Greg
>
>
> Don wrote:
>
> > Hi Greg,
> >
> > The reason for the 5 cent overpull in the bass has to do with a
philosphy
> > that overpulling bass strings may damage the "sound" qualities. I fail
to
> > see how it has any relevance to a plate exhibiting a manufacturing
defect.
> > I have seen a good quality upright tuned 100 cents sharp at A4. It
> > survived, and now that it has been lowered to the correct pitch sounds
very
> > well indeed.
> >
> > At 05:52 PM 12/13/01 -0500, you wrote:
> > >Is there a ceiling? TuneLab is set (default) to overpull no more than 5
> > >cents in the bass and no more than 25 cents in the treble. I find that
the
> > >default setting makes for one accurate pitch raise. I could imagine
that one
> > >very out of whack piano could benefit by changing these setting but I
> > >usually rough it in to pitch and then use the ETD with overpull for the
> > >SECOND pass.
> > >
> > >Greg
> >
> > Regards,
> > Don Rose, B.Mus., A.M.U.S., A.MUS., R.M.T., R.P.T.
> >
> > mailto:drpt@sk.sympatico.ca
> > http://us.geocities.com/drpt1948/
> >
> > 3004 Grant Rd.
> > REGINA, SK
> > S4S 5G7
> > 306-352-3620 or 1-888-29t-uner
>
> --
> Greg Newell
> mailto:gnewell@ameritech.net

Dear list,
    This wasn't mentioned yet but Todd reported that he set the SATIII
for a 25% overpull. Does anyone else think that this might be a tad
extreme for the bass section?

--
Greg Newell
mailto:gnewell@ameritech.net


>
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