speeding upright repetition

[Kenneth W. Burton]

	I'm sorry I missed the class on Turbocharging. If I have a chance,
I'll be there. Without going that far in changing the action settings, I
find that decreasing the checking distance makes a huge difference. When
the hammer is held closer to the string, the jack can get back under the
hammer butt more quickly and will repeat without bringing the key up all
the way.

	Ken Burton "Doctor Piano" Calgary Alberta

On Tue, 11 Nov 1997, Jerry Hunt wrote:

> 
> Talk to Jack Wyatt in Garland, TX. He did a tech at our September
> chapter meeting called "Turbocharging the Upright" that deals with doing
> just that: adjusting the position of the action so that you can get
> repetition out of it. It basically involves tilting the action forward
> which changes the plane of contact between the jack and the butt. This
> will obviously require compensating lost motion, dip, etc.; and finally
> bending the action bracket to compensate for change in down weight. (I'm
> relying on my memory here).
> 
> Two things I recall Jack emphasizing very strongly regarding this
> procedure:
> 1) It is an advanced procedure not to be attempted by beginners (like
> me).
> 2) Charge a lot of money for it, because it adds considerable value to
> the piano.
> 
> Give Jack a call at 972-278-9312 for details.
> 
> =======================================================================
> 
> Benjamin Treuhaft wrote:
> > 
> >      My customer wants to repeat notes on an upright without coming all
> > the way up with the key, in fast playing.  He has a Yamaha studio.  Are
> > there any secrets for this?
> >      You Guild theorists talk a lot about correct jack-travel distance,
> > so I thought maybe if I reduced the dip, that might help.
> > Ben Treuhaf
> > Underwater Piano Shop
> > Berkeley, Calif.
>