Unitary tuning structure

Details Unitary tuning structure Unitary tuning structure

1988-03-31

1989-07-25

Gensler, Paul

Tuners

Inductor and capacitor both variable

With variable inductor and capacitor structure in common

334 71, 334 78, 336 20, H03J 320

Patent

active

048517984

ABSTRACT:
A unitary tuning structure of a UHF tuner includes an inductance loop, an inductance adjustment element attached to a top portion of the inductance loop so as to be foldable with respect to the inductance loop about an axis parallel to the printed circuit board to which the inductance loop is attached and a capacitance adjustment tab attached to a side portion of the inductance loop so as to be foldable with respect to the inductance loop about an axis perpendicular to the printed circuit board. In another form of the unitary tuning structure, a second inductance loop can be attached within the first loop.

REFERENCES:
patent: 2880400 (1959-03-01), Tollefson
patent: 3422379 (1969-01-01), Granqvist
patent: 4048597 (1977-09-01), Knight et al.
patent: 4467393 (1984-08-01), Kupfer
patent: 4485382 (1984-11-01), Moore
Matsushita TNV-56452G2 Tuner used in Quasar TL9982 television receiver believed to be on sale in U.S. in 1987.

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