[CAUT] Yamaha regulation specs

[Jim Busby]

Dan,

That's fine (1 ¾). You have the concepts and will figure it out. Keeping the case parts and key pin in mind play with a couple samples (I usually do C4 and C#4, then others higher and lower if I need to) work out the dip (or key height) then blow. I rarely mess with let off keeping it to spec. You should be able to get 3/8" dip. We only have 231 P22s so I've had to do just what you're doing about, well, 231 times. <G>

Good luck!

Jim Busby

From: caut-bounces at ptg.org [mailto:caut-bounces at ptg.org] On Behalf Of Dan Rembold
Sent: Wednesday, February 09, 2011 6:24 PM
To: caut at ptg.org
Subject: [CAUT] Yamaha regulation specs

List,

Thanks for the great amount of responses recently about new suggestions for pianos.

Our remaining older P22's are now up for attention, and I'm struggling with getting the key height to work right with sufficient dip.  The older ones show presently only 2.25" height, measured from the front of keytop to keybed, and considerably less than 3/8" dip.  I have enough room at the fallboard and balance pins to come up a fair amount.  My question is, what should I be aiming for?

Also, does 1-3/4" sound like a good strike distance for hammers that show some wear?

Many thanks,
Dan
Auburn University




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