Rotary Valve Sousaphones?


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Posted by GC on August 08, 2003 at 12:28:03:

From a subject posted below: it's common knowledge that a good number of Helicons are made with rotary valves, including the Cerveny BBb, Eb, and F helicons that are still in production. Has anyone encountered rotary valve Sousaphones? I've only seen one, and it had been converted from a Helicon.


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