Electromagnetic speaker with bucking parallel high and low frequ

Details Electromagnetic speaker with bucking parallel high and low frequ Electromagnetic speaker with bucking parallel high and low frequ

1978-03-01

1979-04-24

Stellar, George G.

179115R, 179116, 179119R, 179178, 179 1C, H04R 102, H04R 308, H04R 312, H04R 1102

Patent

active

041513797

ABSTRACT:
An electro-acoustic transducer having a bass and treble coil wound on a single magnetizable core positioned to activate a magnetizable armature at one end of the core and to supply magnetic energy at the other end of the core for the operation of other energy requiring apparatus.

REFERENCES:
patent: 316206 (1885-04-01), Waite
patent: 794137 (1905-07-01), Brecht
patent: 1048394 (1912-12-01), Dickinson
patent: 1283304 (1918-10-01), Rhodus
patent: 1548698 (1925-08-01), Young et al.
patent: 1644992 (1927-10-01), Davis
patent: 2121781 (1938-06-01), Ballantine
patent: 2204529 (1940-06-01), Cooley
patent: 3180937 (1965-04-01), Moser
patent: 3449531 (1969-06-01), Ashworth

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