Electrodynamic emitter - Driver
Driver (in an electrodynamic emitter) (U.S.A.)
An assembly comprising the active part of the electrodynamic emitter unit to which the horn is attached.
Note: The terms "Moteur" and "Corps" in French, and "Antrieb" in German apply to any form of sound emitter.
Please note that this is the term as it stands in the original IALA Dictionary edition (1970-1989)
International Association of Marine Aids to Navigation and Lighthouse Authorities - AISM