SD-10 Clarification

[Richard Moody]

Charles wirteth....
>It also had a spring
> mechanism on each key that would eliminate the need to weight keys with
> lead.

more..... !  svp     ---ric 


----- Original Message ----- 
From: Charles E Faulk <cfaulk2@juno.com>
To: <pianotech@ptg.org>
Sent: Saturday, October 28, 2000 2:25 PM
Subject: Re: SD-10 Clarification


> Roger,
> 
> Funny you should mention the experimental SD that was left after Harold
> was retired. He called it the "Gray" piano. It had a flat steel plate, as
> you said, with welded struts. The idea  behind that was to lend precision
> to all the plate elevations and thicknesses. With a plate like he
> envisioned, one could almost set the plate in a case without the need to
> adjust it's height for downbearing ... almost. I remember hearing it on
> several occasions played by some formidable artists. Quite a good piano,
> but unfortunately not significantly better than the existing SD-10. Too
> bad he never had a chance to develop it fully. It also had a spring
> mechanism on each key that would eliminate the need to weight keys with
> lead.
> 
> Regards,
> 
> Charles








> On Sat, 28 Oct 2000 09:43:10 -0600 Roger Jolly <baldyam@sk.sympatico.ca>
> writes:
> > Hi Charles,
> >                   Thank's for the input, sounds logical. The notes I 
> > had,
> > asked as many unaswered questions as it did answers.
> > I recently had the chance to look at one his prototype's (SD12?). 
> > Baldwin
> > donated it to the Cincinnati Museum of Art. The forward duplexes 
> > were tuned
> > an octave higher than the speaking length. The trench was clearly 
> > visible,
> > the resonators were split, and looked to be adjustable. The treble 
> > sounded
> > cleaner, but lacked the power of a production SD10.
> > 
> > It had a welded steel plate, and metal action frames. I'm guessing, 
> > but
> > probably the plate was made this way to save the cost of making a 
> > pattern
> > for a casting.
> > I wish there was more time to examine more closely. 
> > 
> > Regards Roger