Fw: re:Kawai CA-40

[David Ilvedson]

This is a multipart message in MIME format

---------------------- multipart/alternative attachment
Michael,

Try pulling the action, apply pressure from the bottom of the=
 pinblock with machinist jacks and an old pinblock or wood to fit=
 along the pinblock.   Then tighten all the pinblock/plate=
 screws.  If you get any appreciable movement of the screws it=
 will help the tuning stability.

David Ilvedson







Original message
From: Michael Gamble 
To: 
Received: Fri, 10 Jun 2005 13:57:11 +0100
Subject: Fw: re:Kawai CA-40


 
----- Original Message ----- 
From: Michael Gamble 
To: pianotech@ptg.org 
Sent: Wednesday, June 08, 2005 6:06 PM
Subject: re:Kawai CA-40 and Detuning a Yam C-3 to A=3D415


Hello List
>From Sussex where we have a problem with one of our pianos at=
 Glyndebourne. Doesn't stay in tune. This is not one I tune for=
 there are two of us and this is a rehearsal stage piano. My=
 colleague asked me to have a go at it while he stood by. It=
 seems it was tuned just yesterday and already the top two breaks=
 were in trouble and the effect was creeping down into the middle=
 break - unisons weren't unison. Yuk! So I inspected it and found=
 there is quite a lot of Joe G's "flag-poling" going on. Of=
 course you recognise the model (it also has MII stencilled on=
 the web beside the CA-40). My gut feeling is there is too much=
 "give" in those wrest-pin bushings. I was just wondering whether=
 a good old dose of CA might not be in order...it might just=
 harden those bushings...What do you think?
Also just tuned down a Yam C-3 to A=3D415 at Vallotti temperament.=
 I used my "Quadrant System" to do this, but since I was taking=
 the piano down in pitch I started of at A=3D411 and went on from=
 there. Finished in two passes including setting the temperament=
 to Vallotti
Over to you!
Michael G.(UK)


---------------------- multipart/alternative attachment
An HTML attachment was scrubbed...
URL: https://www.moypiano.com/ptg/pianotech.php/attachments/5c/08/76/b2/attachment.htm

---------------------- multipart/alternative attachment--