[pianotech] Pully keys

[Ron Nossaman]

John Delacour wrote:
> The pattern for the iron frame for this 
> thing must have been kicking around in all weathers for years -- the 
> embossed lettering would be unreadable if it weren't picked out in 
> black,  the gilding is a quick blow-over and there is a difference 
of 7.5
> mm in the strike height from note 53 to note 88.  

Yep, you've got one all right. The treble end of the long 
bridge is typically at least 5mm shorter than it might more 
ideally be, so when I'm doing soundboard and bridges on one of 
these, increasing the treble bridge height brings the high 
treble string height up much more comfortably closer to the 
rest of the long bridge. There's still the hump in the middle, 
but it's not as ugly overall as it was leaving the factory.

Ron N