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Doublereed Archive - Posting 000038.txt from 2007/04
From: philfrei@-----.com
Subj: [DR-L] Oboe's forked F-Day 2
Date: Fri, 06 Apr 2007 13:35:23 -0400
Hi Angela and everyone -
I'm looking at my oboe, and agree with the interactions that Angela
describes associated with the adjusting screw. (Thank you for adding
that!)
But I do think that it is still true that this screw can affect the
opening height of the F resonance key, at least to the extent that the
lower screw allows play in the E key before engaging the F-resonance.
I'm guessing it does not effect F-resonance closure, as the spring in
the D key ensures that there will be pressure to close, no matter the
adjustment of the "upper" F-resonance adjusting screw, yes?
One would have to do a lot of adjusting at different locations to
compensate and make a change to the upper screw work. So, the word
"regulates" was a bad choice on my part, as it implies one can just go
in and change the F-resonance height willy-nilly at this location, and
not worry about other interactions. I apologize for that!
I could see where pad thickness of the D would also affect the opening
height of the F-resonance. But wouldn't changing this also change the
tuning of E, as well as throw off the other relations described?
I'm not a repair tech, just a do-it-yourselfer/tinkerer, and greatly
appreciate corrections and shared knowledge.
- Phil Freihofner
>>Date: Tue, 3 Apr 2007 12:20:03 -0500
>>To: <doublereed@-----.org>
>>From: "Lacy, Edwin" <el2@-----.edu>
>>Subject: RE: [DR-L] Oboe's forked F-Day 2
>>Message-ID:
><5C7554D82F4671478985015814A65B7707C85DE8@-----.edu>
>>
>><<<No one has commented on Loree Royale's little screws to adjust the
>>height of the forked F key.I find it doesn't tune the note as perfect
>as
>>my use of cork in the hole.>>>
>>
>>I think that the adjusting screws are not for the purpose of
regulating
>>the height of the pad when the key is open, but rather to make it
>>possible to adjust the key so that it is completely closed when not in
>>use. As we all know, if that pad doesn't seal completely, nothing
from
>>low D on down wants to work at all.
>>
>>Jerry Sirucek used to call this the "oboist's daily adjustment."
>>
>>Ed Lacy
>>
>>
>AOL now offers free email to everyone. Find out more about what's
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>
>------------------------------
>
>Date: Tue, 03 Apr 2007 16:25:46 -0700
>To: doublereed@-----.org
>From: "Angela Wells" <oneflute1oboe@-----.com>
>Subject: RE: [DR-L] forked F adjusting screws
>Message-ID: <BAY103-F114B5A94B60315FD0FCB3AF3670@-----.gbl>
>
>Phil and List,
>
>>There are two adjusting screws on my regular Loree, NZ serial
(2000-2001 or
>>so). The one futher down (towards the bell) on the instrument
regulates the
>>closure of the F resonance key. It hits a rod that is part of the E
key.
>
>Yes, I agree. That's the E key to F resonance key regulation screw.
>
>>The one just above regulates the opening height. It is attached to
the
>>outer ring of the D key. The key connections criss-cross, the rod
extending
>>from the E going above the one from the D.
>
>I disagree. If you tighten that screw, you close down the D and F
(little F
>bis key between F# and E) keys when they're in the open position and
create
>lost motion between your E and F (the E key moves before engaging the
F
>key). If you loosten it, you open up the D key and create lost motion
>between the D and F. You don't want to mess with that unless you're
>correcting a lost motion and key opening problem in the D, E, and F
keys.
>
>Assuming that nothing on your oboe is bent or improperly set up, the
amount
>of opening of the F resonance key is controlled by the thickness of
the pad
>on your D key. However, since the E key is the first open hole for
forked F,
>it should be taken into consideration also.
>
>If you don't like your forked F, talk to your technician about the
opening
>heights of your E key and F resonance key. They can explain to you the
pros
>and cons of changing those key heights, and try a few different things
to
>see how you like it.
>
>~Angela
>(working on that instrument repair technician badge!)
>http://oneflute1oboe.livejournal.com/
>
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