1980-03-31
1981-12-15
Stellar, George G.
H04R 2300
Patent
active
043061206
ABSTRACT:
Sound emitter comprising a circuit generating an electrical signal at high frequency and high voltage, which is modulated by a low frequency signal which is to be transformed into sound waves, and which is applied to a corona-effect transducer at the input of an exponential horn.
Transducer appears in the form of a cylindrical cartridge which is mounted slidably in a passage in the housing of the emitter, and one end of which is engaged in an accommodation provided at the input of the horn, while its other end projects beyond the outer end of passage; the discharge electrode has a cylindrical contact part which is exposed in an intermediate zone of the transducer, between the accommodation and the inner end of the passage; a metal contact member is electrically connected to the output of the generating circuit and is in sliding contact with the contact part of electrode; a metal plug is fixed detachably at the outer end of said passage and holds the transducer in place axially.
Stellar George G.
Striker Michael J.
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