Wound Trichords

[Overs Pianos]

>. . . If it was good enough for Chickering to put 6 trichord wound 
>unisons on the tenor bridge in the 1889 6'4" grand I've got in a 
>practice room, why can't trent put them in a console?
>
>WHY?

Because if Chickering were given the option of having his time over 
again, in 2004 he would probably have opted to use bichords, using a 
core wire about two half gauges smaller than the last plain wire, 
with a speaking length of between 12% to 14% shorter than the last 
plain wire speaking length and wound with a 0.2 mm copper wrap. 
Trichords and Bichords at the lower end of the long bridge are a work 
around for breaking too low. Of course, Chickering reduced the 
speaking length when crossing to the tenor bridge, as did Steinway 
with their tenor bridged O, but they didn't change to bichords.

A better solution is to move the break up to where it will work. Very 
few, if any, of the OEM brigade have the courage to do it.

Ron O.
-- 
OVERS PIANOS - SYDNEY
    Grand Piano Manufacturers
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