Electrical frequency responsive structure

Details Electrical frequency responsive structure Electrical frequency responsive structure

1977-04-13

1978-12-05

Griffin, Robert L.

Wave transmission lines and networks

Automatically controlled systems

With control of equalizer and/or delay network

333 76, 336129, 336220, H03H 508, H01F 500, H01F 2700

Patent

active

041288181

ABSTRACT:
An electrical frequency responsive circuit comprising a first relatively larger diameter coil constructed of wire having an insulating coating thereon wound in a single layer about an axis of generation, and a second relatively smaller diameter coil having an outer diameter slightly larger than the inner diameter of the first coil, also constructed of wire having an insulating coating thereon wound about an axis of generation in a single layer. One end of the second coil is screwed into one end of the first coil a distance to provide inductance and capacitance between the coils whereby the circuit is responsive to an electric signal having a predetermined electrical frequency imposed across the other ends of the coils to provide frequency band suppression about the predetermined frequency.

REFERENCES:
patent: 1661953 (1928-03-01), McIntosh
patent: 1791236 (1931-02-01), Drake
patent: 2173084 (1939-09-01), Case
patent: 2779924 (1957-01-01), DuChateuier
patent: 2925495 (1960-02-01), Mason et al.
patent: 2958930 (1960-11-01), Heazel, Jr. et al.
patent: 3111636 (1963-11-01), Ma
patent: 3495201 (1970-02-01), Marker, Jr.
"An Introduction to the Theory & Design of Electric Wavefilters" - F. Scowen 2nd edition, Chapman and Hall, Ltd, 1950, pp. 49-52.
Lafayette Radio Electronics Catalog 700, 1970, p. 392.

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