Difference between revisions of "Electromagnetic horn"

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Latest revision as of 01:16, 25 February 2009

3-2-220

Alternative terms: Electromagnetic horn (G.B.), (Electromagnetic air) Oscillator (U.S.A.)

A fog signal apparatus comprising a resonant diaphragm maintained in vibrating motion by electromagnetic action.




Please note that this is the term as it stands in the original IALA Dictionary edition (1970-1989)