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Re: Keys below low Eflat suddenly become a semitone sharper

Author: Chris P
Date: 2016-08-11 01:19
Attachment: S40cFvent.jpg (151k)

The F vent is set up so it's released when RH3 is closed, then closed again when RH2 is closed. Here's how I set it up (see attachment for a labelled photo):

- Keep RH3 held closed to free the F vent.

- Then adjust the screw (B) to close the F vent pad fully along with LH2 (closing and releasing RH2 as though you're playing D-F-D-F). The key foot (C) is the one linked to RH2 which closes the F vent.

- The other adjusting screw (A) is to adjust the regulation of RH3 in relation to RH2 - that will remove any double action between RH3 and the F# key (the one with two adjusting screws right next to each other).

Your F vent is opening considerably, so it looks like the key cork on the top side of the key foot (C) has fallen off. Also check the rod screw that holds the RH main action in place hasn't come undone as that can put the RH main action out of whack - especially as the lower end of the screw is holding the lower part of the LH2 key and especially the key foot (C) in place.

Former oboe finisher
Howarth of London
1998 - 2010
The opinions I express are my own.

Post Edited (2016-08-11 01:25)

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