The answer from Yamaha

[pianolover 88]

earlier today I spoke with tech  Dave Durbin, of yamaha Corp. He confirmed 
that the stamped scale indications on the long bridge are INDEED Metric, as 
I suspected. On the vast majority of grands, and probaly uprights as well, 
"Suzuki" wire, which is metric sized, is used. Bottom line from Yamaha: When 
restringing with American Standard wire,  use 1/2 size smaller than 
indicated on the bridge. Simple enough.

Terry Peterson



----Original Message Follows----
From: David Ilvedson <ilvey@sbcglobal.net>
Reply-To: ilvey@sbcglobal.net, Pianotech <pianotech@ptg.org>
To: <pianotech@ptg.org>
Subject: Re: yamaha wire is metric..OT
Date: Mon, 18 Oct 2004 13:55:12 -0700

I've been conversing back and forth off list with Terry on this...in my 
experience with Yamahas, when I replace a  broken string I mic and have 
found that area in between two bridge stamps, i.e. 13.5, 14 etc. is read 
from right to left, treble to bass.   On Terry's piano the last size stamped 
on the bridge is 13.5.   This is several unisons towards the bass from note 
#88.  In other words there is no 13 stamped on the bridge!  The size from 
#88 note down (towards the bass) to the 13.5 stamp is size 13 wire.   From 
13.5 stamp down (towards the bass) to 14 stamp is 13.5 and onward.

David I.



----- Original message ---------------------------------------->
From: Farrell <mfarrel2@tampabay.rr.com>
To: Pianotech <pianotech@ptg.org>
Received: Mon, 18 Oct 2004 09:32:56 -0400
Subject: Re: yamaha wire is metric..OT

>I've been following this tread with interest as I service a number of 
Yamaha
>C3s that get beat on and need string replacements somewhat frequently.
>Perhaps I missed the key post, but has there been any consensus as to
>whether the gauge numbers marked on the long bridge are consistent with
>Roslau & Mapes gauge sizes?

>Terry Farrell


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