Re: Enlarging the Throat on Conn Helleberg


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Posted by Frederick J. Young on March 11, 2002 at 18:30:19:

In Reply to: Enlarging the Throat on Conn Helleberg posted by CK on March 04, 2002 at 18:24:44:

Years ago Mr. Draper, the head of Boosey & Hawkes Edgeware Factory told me that the only function of the back bore on mouthpieces is to make the high register as stuffy as the low register normally is. He recommended drilling out completely the back bore making it a straight cylinder into the cup of the mouthpiece. Any machine shop can do that in about one minute and probably won't charge for it.


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