Klarinet Archive - Posting 000428.txt from 2002/10

From: Karl Krelove <karlkrelove@-----.net>
Subj: Re: [kl] Repair Problems (Part 2)
Date: Tue, 15 Oct 2002 16:16:23 -0400

I missed your original post, so I'm working from this one (including what
you reposted of your original).

How did you check for leaks? It seems to me, without seeing the crack, that
it's too low (too near the tenon) to cause the problem you're describing.
Besides, if it isn't through to the outside, it isn't leaking air.

My first thought is that the bridge keys between the two sections may be out
of adjustment. This can keep the pad at the top of the right-hand (bottom)
section from closing completely when the instrument is assembled. If you
test for leaks by nearly any method with the sections *apart,* you won't
find the problem - it'll only be there when the clarinet is assembled.

The puzzling part is that the chalumeau notes with the same fingerings work.
You can go back to a suggestion I made to someone else (I *think* it was
someone else) recently to make sure the register tube is clean and dry. The
effect of its being plugged in any way would be greatest on long B and
diminish as you open more tone holes and it would affect only the clarion,
not the chalumeau register.

Good luck.

Karl Krelove

> -----Original Message-----
> From: Andrew Weaver [mailto:andrewweaver@-----.net]
> Sent: Monday, October 14, 2002 8:32 PM
> To: klarinet@-----.org
> Subject: [kl] Repair Problems (Part 2)
>
>
> I tried all of the suggestions that were given:
> - I checked all of the springs and all of the pads and found no
> problems of the keys opening while playing (I also tried holding
> down the pad cups while playing with no luck)
> - I tried putting tape on the crack but that did not change anything
> - I was able to gliss down to the D, but couldn't get much
> further than that.
>
> Here are some factors that I left out of the last message:
> - The crack I am talking about is on the inside of the bore. It
> goes to the end of the tenon with little or no penetration into
> the wood. I had to shine a flashlight on it even be able to tell
> if it was a crack (I thought it was just a scratch)
> - If I try hard enough, I am barely able to get the B, C, and D
> to play, but not in a way that I could play notes before it and
> then play those notes, the difference in pressure is just too great.
>
> - Any help on this would be greatly appreciated
> - Thanks, Andrew
>
>
> >I've been driven nuts with repairing a clarinet I bought a while ago.
> >I've been learning to do repairs off and on for about 2 years now.
> >I can't seem to get the Clarion B,C, or D, no matter how hard I try.
> >I repadded the keys, and checked for leaks, finding none.
> >I tried removing the keys altogether and just covering the
> specific tone holes with fingers or tape, and still had the same problem.
> >Even weirder, none of the other notes seem to have these
> problems (Even the Chalumeau register E,F and G play normally).
> >I even tried switching the top tenon with another instrument and
> the top tenon played fine, (the bottom still had the same problem)
> >The only idea I have is that their is a small hairline (about an
> inch or so), coming from the end of the bottom tenon (you need a
> flashlight to see it). Could this be the cause?
> >The instrument is a Noblet Paris, Serial # 52470, about 1965
> >If anybody has any suggestions, comments, anything, it would be
> greatly appreciated.
>

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