Difference between revisions of "Diaphragm"
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Latest revision as of 00:16, 25 February 2009
3-2-155
Diaphragm (in a compressed-air diaphragm horn)
A flexible disc supported at its periphery which constitutes the moving part of the valve which admits compressed air to the throat of the horn.
Please note that this is the term as it stands in the original IALA Dictionary edition (1970-1989)