jack springs in drop action (Modified by J Patrick Draine)

[Joseph Garrett]

Patrick,
I knew I heard that somewhere before. However, I think the reference goes to
something else. Perhaps something more metaphysical or....? Dunno, just
leaves a big hmmmmm/huh? in my vacuum.<G>
Thanks
Joe Garrett, RPT, (Oregon)
Captain, Tool Police
Squares Are I

----- Original Message ----- 
From: "J Patrick Draine" <draine@comcast.net>
To: "Pianotech" <pianotech@ptg.org>
Sent: Friday, June 04, 2004 1:58 AM
Subject: Re: jack springs in drop action (Modified by J Patrick Draine)


> Perhaps this post which I sent to pianotech several days ago will help?
>
> On Jun 4, 2004, at 4:09 AM, Dave Nereson wrote:
>
> >
> >     If it's only six, reach in with a hemostat, yank 'em out and put
> > new
> > ones.
>
> Am I the only one who recalls Jim Harvey's Rule of Sixes, to whit, that
> if a half dozen of a set of piano components is failing, that's a clear
> indicator that further trouble is just past the horizon.
> Statistics fans, that's 6.8% of a set failing (and my vague vague
> recollection from my sole stat class 30 years ago is that's hovering
> around a typical standard deviation threshold).
>
> Patrick
>
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>