Old rotary valves for grafting??


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Posted by Hal Ihkahn on December 23, 2003 at 07:57:40:

I see some older 4-rotary valve helicons on the auction site from time to time that seem to be advertised cheaply - maybe because of the crumpled bells, maybe because there's holes in the body.
Would these instruments be worth getting just for their valve clusters? If there was an old U.S. helicon with three valves, couldn't one replace the valve section with one of the 4-rotary valve sections from one of these old European instruments on the auction site?


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