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 EH thumb octave key issue
Author: mddds 
Date:   2018-11-09 22:54

hi there,

recently, noticed that when i depress the LH thumb octave key, the low g or a keeps playing without any hint of change.

i have to really increase air flow and embouchure pressure to get it - and the higher note still does not reliably come out.

this happens even within a few minutes of playing and then persists.

i thought it was water in the hole but even after blowing out the tonehole (no water comes out) it does not help.

the second octave key does not leak or stick.

didn't feel any leaks in the upper joint but did not use a machine.

any thoughts?

p.s. the cork on the crook needs to be replaced but is not loose and appears to seal well.



Post Edited (2018-11-09 22:55)

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 Re: EH thumb octave key issue
Author: Hotboy 
Date:   2018-11-10 13:14

Two possibilities come to mind:

1) The 1st octave key is not opening even though you are pressing the thumb key. The thumb octave key is spring loaded and doesn't directly open like the side octave key., so look at the instrument when you press the thumb key. Look at the octave vent key when pressing the thumb key...does the octave key actually open? If it does not, it could be the cork pad that is sticking to the body, or it could be the the screw/pivot action that is binding. If the pad is sticking to the instrument, sometimes just raising the key will break whatver sticky bond it has.

2) The 1st octave vent is dirty. You need a special tool to remove the metal vent from the body of the instrument, and you will need a qualified oboe repair tech that has this special tool so that they can clean the vent.

Bay Area, California

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 Re: EH thumb octave key issue
Author: mddds 
Date:   2018-11-15 02:57

thanks for the reply,

the octave key does lift up and away from the hole.

i'll send it in to get it serviced. i think it needs an overhaul (and adjustment for sure) anyway.



Reply To Message
 Re: EH thumb octave key issue
Author: Chris P 
Date:   2018-11-15 22:42

mddds wrote:

"i'll send it in to get it serviced. i think it needs an overhaul (and adjustment for sure) anyway."

A service and an overhaul are very different things - be sure you use the correct term as a service is routine cleaning, oiling, adjusting and replacing anything that needs doing while the whole instrument taken apart.

Whereas an overhaul is a complete strip down and rebuild involving replacing all the pads, key corks and just about everything that can be replaced.

Former oboe finisher
Howarth of London
1998 - 2010

The opinions I express are my own.

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