[CAUT] duplex position

[Keith Roberts]

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.

Keith Roberts




On Jan 3, 2008 5:45 AM, Paul T Williams <pwilliams4 at unlnotes.unl.edu> wrote:

>
> Hi David.
>
> Happy New Year.
>
> Here are some measurements I got from Greg Hulme in KC.
>
> Style B  measured from duplex to rear line of bridge pin
> Note 40 = 98mm
>            51 = 46mm
>            52 = 85mm
>            68 = 37.5mm
>            69 = 46mm
>            88 = 25mm
>
> Hope this helps!
>
> Paul
>
>
>
>
>   *"David Ilvedson" <ilvey at sbcglobal.net>*
> 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>
>
>    To
> pianotech at ptg.org, caut at ptg.org  cc
>   Subject
> [CAUT] duplex position
>
>
>
>
> List,
>
> 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
>
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