Venting...Of piston valves


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Posted by TubaDude on November 09, 2002 at 22:23:20:

I just got a brand new Holton TU330CCS and noticed that the valves have a little hole down towards the bottom of the piston. What is the purpose of this technology?? Oh and BTW the horn kicks some serious butt. I layed down some tracks on a current CD project that I'm working on a few weeks ago on a Kalison DS then came back last week and did the identical tunes on the TU330CCS and it's hard to tell the difference between the two horns.


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