[pianotech] Stwy A (6' 1") speaking lengths

[Gene Nelson]

Alan,

I removed the cantilever, built a new bridge and repositioned it on a new
board with the intent to shorten speaking length/ increase tail length as
much as possible especially in the lo-bass. I also wanted the string maker
to make double German loop ties or leave enough wire for me to do it - my
string maker was not so cooperative. 

The change was certainly noticeable but I cannot reasonably compare it to
the original.

Also I experimented with weighting the bridge and got a bit more clarity of
tone/pitch definition with about 90g under the upper part of the bass
bridge. 

In regard to board design, bridge design and scale design I am light years
away from a formula that would bring out the best of the lowest 3 to 5 notes
on this size piano but I like what I accomplished. And I like it better than
many new ones that I have tried.

Gene

 

  _____  

From: pianotech-bounces at ptg.org [mailto:pianotech-bounces at ptg.org] On Behalf
Of Alan Eder
Sent: Friday, March 18, 2011 11:05 AM
To: pianotech at ptg.org
Subject: Re: [pianotech] Stwy A (6' 1") speaking lengths

 

Gene,

 

I thought increasing back scale lengths might be the reason why, but have
learned the hard way not to assume anything.  So, was the difference in
lengths gained solely through the elimination of the cantilever, or was the
base of the bridge also moved?  And I take it that there is a noticeable
change, and you like it? 

 

Thanks,

 

Alan Eder

 

-----Original Message-----
From: Gene Nelson <nelsong at intune88.com>
To: pianotech <pianotech at ptg.org>
Sent: Fri, Mar 18, 2011 6:42 am
Subject: Re: [pianotech] Stwy A (6' 1") speaking lengths

Del Fandrich has taught about improved tone with longer back scale length in
the lo-bass and I believe him. His portable device demonstrates this for all
to hear. If you get a chance to take this class you should.

The lo-bass on this piano especially had short back scale and the extra 16mm
helped get the back scale length closer to 80 or 90mm on the lowest few
notes - excluding the tied part of the wire - cannot recall exact lengths. I
would have shortened the lo-bass speaking lengths more but was restricted by
the plate casting.

The original bridge and its cantilever was also replaced with a new bridge
and no cantilever.

Gene

  _____  

From: pianotech-bounces at ptg.org [mailto:pianotech-bounces at ptg.org
<mailto:pianotech-bounces at ptg.org?> ] On Behalf Of Alan Eder
Sent: Friday, March 18, 2011 8:37 AM
To: pianotech at ptg.org
Subject: Re: [pianotech] Stwy A (6' 1") speaking lengths

 

Thanks for the info, Gene.  Looks like you put the long bridge back in the
same relative position to the plate, but shortened up the speaking lengths
in the bass by 12 to 16 mm.  I would be very interested in knowing what led
you to make this change? 

 

Thanks again,

 

Alan Eder

 

-----Original Message-----
From: Gene Nelson <nelsong at intune88.com>
To: pianotech <pianotech at ptg.org>
Sent: Thu, Mar 17, 2011 1:08 pm
Subject: Re: [pianotech] Stwy A (6' 1") speaking lengths

1909 A original

#1=1415mm

#20=1078

#21=1207

#88=51

Rescaled - new board, strings, bass bridge and bridge capps, block etc.

#1=1399

#20=1066

#21=1207

#88=51

 

 

  _____  

>Does anyone have information about speaking lengths (particularly 
>notes nos. 1, 20, 21 and 88) for Steinway model A, 6' 1" (1913). 
> This could be information either from Steinway itself, or from 
>observation, or even your own notion of what might work best.  The 
>project in question does not involve adding a transition bridge or 
>rescaling, but comparing the original condition of a piano getting a 
>new board and bridge caps with other iterations of the same model.
 
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