 The Clarinet BBoard
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Author: eac
Date: 2008-01-31 01:29
My father tells me the register tube on his Leblanc LL is protruding too far, ie, is not flush with the wood. He lives in a small town without ready access to an instrument tech. He is a woodworker and model airplane builder and is very good with fine detail. Can he adjust this himself? Is the tube screwed in or is it pressed in? Any help would be most appreciated.
Liz Leckey
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Author: klarenet
Date: 2008-01-31 02:12
The register tube should protrude into the instrument. That said, I have had the tubes on by Bb and A clarinets replaced with shorter ones, which helped a good deal with some "wolfing" notes in the high register.
Karen
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Author: skygardener
Date: 2008-01-31 05:12
I think you mean that the tube is protruding OUT of the clarinet too far, right??
I personally, think that that is a good thing. A register tube that is flush with the wood on the outside will not allow a good seal of the pad, because the pad compresses and "wraps around" the tube. Having said that, I don't think that the tube should protrude out of the wood more than 2 mm max.
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Author: tictactux ★2017
Date: 2008-01-31 06:54
> I don't think that the tube should protrude out of the wood more than 2 mm max.
I've had a couple of elderly clarinets where the register key went into the bore by ~2 mm but some 5mm outside (secured with a collar so I don't think this was by accident). Much like like a Galper vent, but those clarinets were from the 70s.
--
Ben
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Author: Don Berger
Date: 2008-01-31 14:15
Hi eac - IMHO, I'd advise leaving the LL's register tube location alone, I'm sure it was intentional, having several Leb [and Sel] cls from that, and later, times.. In the 50's - 60's Leblanc [and Selmer] were leaders in trying to solve the mid-staff [pinch] Bb "problem" by means of simpler constructions than the more - complex keying methods invented by Leon Leblanc, Wm Stubbins, the McIntyres, Mazzeo and others. Later, Ave Galper carried on more research and his patent describes his discoveries and feelings quite well. I do not know of any efforts by Buffet along this line, and the later Buff's I've seen still [seem] to adhere to this "old" register tube sizing and relative location, which on some of their Vintages gave a weak/fuzzy pinch Bb. I have tried to follow these developments, with some of my experimentation, for years, as many of us have also, so this reflects my opinions re: this difficult dual-service acoustic problem, A M thots, Don
Thanx, Mark, Don
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Author: stevesklar
Date: 2008-02-01 09:43
the register tube for the LL is not just a "tube" per say, as like on an R13
it normally has a bulbous "cap"
http://www.clarinetperfection.com/work/llreg.jpg
versus the more "tube" like R13
http://www.clarinetperfection.com/work/r13reg.jpg
so you can't just "push" it in more. One symphony clarinet player offers a new register tube for the R13 that protrudes more and, as mentioned above, improves the mid Bb issues (but that's for an R13)
If he believe it is an issue - which I don't think it is - i would recommend that he take it to a tech as there is not just a round hole there to replace the register tube.
i recommend first using a pipe cleaner and make sure there is nothing stuck in the register tube.
==========
Stephen Sklar
My YouTube Channel of Clarinet Information
Post Edited (2008-02-01 09:45)
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Author: eac
Date: 2008-02-01 12:57
Thanks for all your replies, including the very helpful pix. I'll forward them on to him. Sounds like he doesn't have a problem.
Liz Leckey
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