 The Oboe BBoard
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Author: Ehafb
Date: 2016-05-31 17:57
Hi
My top trill key on my cor stays open when pressed. If I slacked screw will I knock off any other settings??
thanks
Bryan
Bryan
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Author: Chris P
Date: 2016-05-31 18:09
Sounds like one of the pillars on the trill beam (running down the left side of the top joint) may have turned which is the most common cause of the top trill pad cup remaining open. It's usually the lower pillar at the linkage end (above the tenon) that can rotate and bind up the trill beam, so have a locking screw fitted into the joint and pillar base to it to keep it secured in place.
Former oboe finisher
Howarth of London
1998 - 2010
The opinions I express are my own.
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Author: Chris P
Date: 2016-05-31 19:45
What make/model cor is it? The arrangement of the trill beam can differ from make and model (eg. S5 and XL cors have a different arrangement), but generally the C-D trill beam on the top joint is the longest one and the one most likely to bind up if the pillars move.
On pro level cors with a combined trill beam with both the LH trill touches mounted on the same pinned steel, the C-D trill is in three sections all pinned to the steel axle while the other trill touchpiece for LH3 (B/C-C#) is free to move independently.
The trill linkage is prone to being bent on oboes/cors if the top joint trill keys aren't held down or the RH C-D trill key is held down during assembly or if the RH C-D trill key spring has gone so it's free to flap about.
Former oboe finisher
Howarth of London
1998 - 2010
The opinions I express are my own.
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