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piston valve

[English]

A mechanism on a brass instrument that, when depressed, directs the air column along additional tubing inside the instrument. This additional tubing produces a different fundamental and harmonic series. The piston valve is comprised of a cylinder inside a brass housing that must be depressed completely to allow the tubing to align properly.

See Also

[English] valve
[English] rotary valve

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Last Updated: 2016-06-06 19:40:23