Klarinet Archive - Posting 000198.txt from 1998/11

From: reedman@-----.com
Subj: [kl] Shortening barrels, 10G barrels
Date: Fri, 6 Nov 1998 14:05:58 -0500

The following was posted yesterday:

>Mark - You may be better off having your barrel shortened one milimeter.
Many repairmen can do this and they shorten it on the mouthpiece end so it
will not significantly affect the taper of the barrel. Mismatched barrels
will cause resistance and intonation problems.
Marty Marks

Sorry to disagree, but it is better to shorten the barrel from the
"clarinet" end. Any shortening will result in changing the dimensions. The
dimension at the mouthpiece end has a greater effect on how the barrel
responds, this due to the amount of "choke" created by the step from
mouthpiece end bore to the barrel bore.

Another good reason for shortening the "clarinet" end of the barrel has to
do with the way the mouthpiece tenon fits into the barrel socket. Unless
your repairman has an extremely accurate lathe, collete set up and a lot of
experience, chances are the tenon won't line up properly after it has been
machined. Inconsistency at the mouthpiece end will have a much greater
affect on pitch and response than at the opposite end.

As to 10G barrels. My understanding is that the 10G was an attempt by
Selmer to mitigate the disaster of the Series 10 and adopt a bore style
similar to the Buffet R-13. The 10G barrels I have measured are not a lot
different than standard Buffet barrels. It's a matter of taste, but most
"Moenig" style barrels should work fairly well on the 10G.

As far as I know, I am the only maker other than Selmer that incorporates a
rubber lining into a wood barrel. The idea is to minimize the problems of
wood shrinkage over time. Also, hard rubber presents a smoother surface and
increases overall response.

Clark W Fobes

Clark W Fobes
Web Page http://www.sneezy.org/clark_fobes

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