A tenor bridge conversion

[Ron Overs]

Hi all,

I've just loaded a couple of images onto my webspace which show the 
layout for a tenor bridge conversion of a Bechstein model C grand, 
and an image of the new tenor bridge in place prior to stringing.

Here is an image link taken at the layout planning stage;

http://members.optusnet.com.au/ronovers/bech_c_tenor1.jpg

Here is an image link, taken last Friday which shows the finished 
tenor bridge in place, awaiting strings.

http://members.optusnet.com.au/ronovers/bech_c_tenor2.jpg

The original Bechstein C (circ 1953) was one of the most outstanding 
examples of a poor scale I've ever measured in a mid sized grand. The 
tension dropped down to around 18% at note E20 (the lowest note on 
the long bridge). To rectify this problem, a new tenor bridge was 
designed from the first original trichord plain note, E20, up to note 
D#31. The new lowest plain-strung trichord is at a respectable 
tension of 36%. This will transform the model C from one of the worst 
crosses in the business, improving it to the point where it is about 
equivalent to the cross of a model D Steinway (in terms of percentage 
of tension deviation - the lower the deviation the better the tuning 
stability). Should have it strung and playing in a couple of weeks.

Ron O.

-- 
OVERS PIANOS - SYDNEY
    Grand Piano Manufacturers
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Web http://overspianos.com.au
mailto:ron at overspianos.com.au
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