Electrical resistors – Incased – embedded – or housed – Element in insulation with outer metallic sheath
Patent
1974-09-23
1976-11-09
Stellar, George G.
Electrical resistors
Incased, embedded, or housed
Element in insulation with outer metallic sheath
179121R, 179179, 179190, 338333, 338334, H04R 102, H04R 300, H04R 1900
Patent
active
039912850
ABSTRACT:
Microphone including an electrostatic microphone cartridge at least one of the electrodes of which is connected to a large resistor which forms part of an electronic circuit. The circuit may be the supply part or the input of the associated microphone amplifier which generally is incorporated in the cartridge. The large resistor is constituted by a structural component of the cartridge, which component is made of a weakly conductive synthetic material. The conductive synthetic material may be a conductive silicone rubber or a conductive polypropylene.
REFERENCES:
patent: 3238355 (1966-03-01), Van Eeck
patent: 3277418 (1966-10-01), Norman et al.
patent: 3300585 (1967-01-01), Reedyk et al.
patent: 3412358 (1968-11-01), Hummel et al.
patent: 3715638 (1973-02-01), Polye
patent: 3731009 (1973-05-01), Watanabe et al.
patent: 3816671 (1974-06-01), Fraim et al.
patent: 3833770 (1974-09-01), Atoji et al.
"High-Temperature Adhesive Tape Resistor" (No Author) Radio & Television News, Jan. 1952, vol. 47, No. 1, pp. 14 & 15.
Swarte Petrus Antonius
Van Den Worm Freddy Eddy
Franzblau Bernard
Stellar George G.
Trifari Frank R.
U.S. Philips Corporation
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