[pianotech] Retrofitting a Steinway w/adjustable back action

Ron Nossaman rnossaman at cox.net
Sat Jun 27 21:36:48 MDT 2009


Michael Spreeman wrote:

>  I can understand why one would modify the existing system if the 
> backaction is not being replaced. However, if the backaction is being 
> replaced, why not order and install these instead?

I don't know, why not? To me, the spoon looks WAY high of the 
original, and the capstan looks WAY low. I , admittedly, 
haven't looked at this as an option, but how does this sucker 
fit as a replacement to an under lever with a MUCH lower 
underlever to key end felt contact, and a much higher 
underlever to tray contact point? Is there actually room to 
make a new tray to accommodate these?

How does this work, geometrically? I'd really appreciate other 
options, as they fit with physical reality. Please give.
Ron N


More information about the pianotech mailing list

This PTG archive page provided courtesy of Moy Piano Service, LLC