Electro-acoustic transducers

Details Electro-acoustic transducers Electro-acoustic transducers

1983-01-12

1986-03-25

Rubinson, Gene Z.

Electrical audio signal processing systems and devices

One-way audio signal program distribution

Public address system

1791155R, 179115R, H04R 1100

Patent

active

045788081

ABSTRACT:
A method of producing a transducer in which the fine tolerances are obtained by a two stage moulding process. Features include retention of the coil by the moulding process and accurate dimensioning of the magnet by depression of the soft iron core.

REFERENCES:
patent: 3324253 (1967-06-01), Uemura
patent: 3497638 (1970-02-01), Cohen
patent: 4360711 (1982-11-01), Steiner
patent: 4425482 (1984-01-01), Bordelon
patent: 4443667 (1984-04-01), Hunt

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