Tunable electrical component

Details Tunable electrical component Tunable electrical component

1976-08-16

1977-12-13

Kozma, Thomas J.

Inductor devices

With movable element position indicator

336 65, 336144, 336192, 343750, H01F 2902

Patent

active

040632067

ABSTRACT:
An electrical component such as a base loading coil assembly for a fixed length mobile radio antenna is disclosed featuring an electrical coil having a series of windings and an adjustable shorting screw disposed in line with the longitudinal axis of the coil and being rotatable on at least a portion of the windings so as to translate along the longitudinal axis of the coil to vary the inductance thereof.

REFERENCES:
patent: 1676744 (1928-07-01), Pickard
patent: 1904208 (1933-04-01), Dow
patent: 2290508 (1942-07-01), Usselman et al.
patent: 2649577 (1953-08-01), Armstrong
patent: 2764742 (1956-09-01), Cady et al.
patent: 2894260 (1959-07-01), Ellis
patent: 3267476 (1966-08-01), Finke
patent: 3729817 (1973-05-01), Rouen et al.
A.P.C. Application of Bassett, Serial No. 551,049 published Aug. 23, 1949.

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