Stein grand unique board was: Piano Rims.

[Erwinspiano@AOL.COM]

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In a message dated 12/30/2001 1:40:23 PM Pacific Standard Time, 
Erwinspiano@AOL.COM writes:


> Subj:Stein grand unique board was: Piano Rims.
> Date:12/30/2001 1:40:23 PM Pacific Standard Time
> From:    Erwinspiano@AOL.COM
> Sender:    owner-pianotech@ptg.org
> Reply-to: <A HREF="mailto:pianotech@ptg.org">pianotech@ptg.org</A>
> To:    pianotech@ptg.org
> 
> 
> 
> 
> . 
> 
> >> Phil Ford writes 
>> > 
>> > If what you want is the entire soundboard moving up 
>> > and down as a diaphragm it seems to me that having 
>> > this hinged edge attachment might come closer to 
>> > giving that than a clamped edge arrangement. 
>> > Actually building something workable might be 
>> > difficult. 
>> 
>> And we must avoid difficulties at all cost! 
>> 
>> As time goes on I find myself coming closer and closer to the notion of a 
>> hinged-edge diaphragm configuration. Our soundboards are functionally very 
>> near that now. And my new 200 cm grand design is even closer. 
>> 
>> Del 
>> 
>        Del, Phil and all 
>         This may not be completely irrelevant but since we are taliking 
> hinged sdboard systems. I recently saw a Charles Fredrick Stein built in 
> Chicago in the golden years. This piano was 6ft. 3 ish and beautifully 
> rebuilt and refinished by Bob And Marcia Davis of Stockton Ca.       
>       The Original belly system was a clamped edge system only on the belly 
> rail and near the first highest rib on the curve as I recall. The rest of 
> the system consisted of the ribs glued on top of the inner rim ( not 
> morticed in as usual) with the board glued to n the ribs as usual but not 
> to the rim. Basically a free edge more or less.  Dumfounded was I at the 
> rich sining tone and broad dynamics. It made me think of your (Dels) 
> description of tonal range/dynamics in the pp area and the power generated 
> by a strong fundamental in the forte ranges. No clang and bang just 
> wonderful musical power and sustain. 
>    (Bob/Marcia  jump in here and add or correct anything I'm forgetting.) 
> 
>            Happy Old/New year to all 
>            Dale Erwin



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