[CAUT] duplex position

[Alan McCoy]

If it is really of no consequence, you could toss them and drill and install
vertical hitches. That would allow you to adjust the rear component for
downbearing. 

FWIW,

Alan


-- Alan McCoy, RPT
Eastern Washington University
amccoy at mail.ewu.edu
509-359-4627


> From: David Ilvedson <ilvey at sbcglobal.net>
> Reply-To: <ilvey at sbcglobal.net>, "College and University Technicians
> <caut at ptg.org>" <caut at ptg.org>
> Date: Thu, 03 Jan 2008 22:39:19 -0800
> To: <keithspiano at gmail.com>, <caut at ptg.org>
> Subject: Re: [CAUT] duplex position
> 
> I phoned Steinway and talked briefly with David Kirkland(spelling).   He
> didn't have specs below 1905 but he said the duplex position was of little
> consequence.
> 
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> 
> David Ilvedson, RPT
> 
> Pacifica, CA 94044
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> Original message
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> From: "Keith Roberts"
> 
> To: "College and University Technicians"
> 
> Received: 1/3/2008 10:07:43 PM
> 
> Subject: Re: [CAUT] duplex position
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> 
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> At our last chapter meeting we were discussing duplex scales and whether they
> made a difference and so on the B that Dale has exhibited we muted different
> segments and listened. Bob Davis did say that the duplex is tuned to the fifth
> so he strings the two end wires in the section and sets the duplex bar
> according to his ear. We plucked and the duplex scale was on the fifth where
> Dale had set it.
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> Keith Roberts
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> On Jan 3, 2008 5:45 AM, Paul T Williams <pwilliams4 at unlnotes.unl.edu> wrote:
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> Hi David.
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> Happy New Year.
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> Here are some measurements I got from Greg Hulme in KC.
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> Style B  measured from duplex to rear line of bridge pin
> 
> Note 40 = 98mm
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>            51 = 46mm
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>            52 = 85mm
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>            68 = 37.5mm
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>            69 = 46mm
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>            88 = 25mm
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> Hope this helps!
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> Paul
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> "David Ilvedson" <ilvey at sbcglobal.net>
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> Sent by: caut-bounces at ptg.org
> 
> 01/03/2008 01:03 AM Please respond to
> 
> ilvey at sbcglobal.net; Please respond to
> 
> College and University Technicians < caut at ptg.org>
> 
> 
> 
> Topianotech at ptg.org, caut at ptg.org
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> cc
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> Subject[CAUT] duplex position
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> List,
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> Is there a clear cut way to position the duplex bars on a Steinway?   This is
> 100 year old B I'm restringing.   Top treble sections only.   I can position
> as I found it but is there a measurement from the bridge pins...?
> 
> 
> 
> David Ilvedson, RPTPacifica, CA 94044