[CAUT] balancier grams

[Jim Busby]

Wim,

This was covered in my query last month on how to pin Schwander type wippens, and I'll go with Richard Davenport, Mark Cramer, Debbie Cyr and the NBS folks; 8 grams target, 10 grams maximum. Since I've been doing this I've had more stability in my regulations, especially concerning the springs. I know this may seem too strong but I'm sold on it. Actually, I'm a bit more conservative and shoot for 7-8 with 9 being my max.

Mark Cramer wrote me an excellent private post explaining some good "stuff" about why stronger is better. I won't put that here w/o his permission. Mark? Care to pipe in??

Regards,
Jim Busby BYU



________________________________
From: caut-bounces at ptg.org [mailto:caut-bounces at ptg.org] On Behalf Of Willem Blees
Sent: Tuesday, March 18, 2008 3:52 PM
To: caut at ptg.org
Subject: [CAUT] balancier grams

Several years ago there was a discussion on the balance resistance, but I can't remember the numbers. I'm in the process of putting together a tech program on repetition springs adjustment, and need that number.

Thanks
Willem (Wim) Blees, RPT
Piano Tuner/Technician
Honolulu, HI
Author of
The Business of Piano Tuning
available from Potter Press
www.pianotuning.com
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