GB799681A - Radio receiver waveband selection circuit - Google Patents

Radio receiver waveband selection circuit

Info

Publication number
GB799681A
GB799681A GB1893556A GB1893556A GB799681A GB 799681 A GB799681 A GB 799681A GB 1893556 A GB1893556 A GB 1893556A GB 1893556 A GB1893556 A GB 1893556A GB 799681 A GB799681 A GB 799681A
Authority
GB
United Kingdom
Prior art keywords
cable
circuit
selection circuit
radio receiver
frequency
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired
Application number
GB1893556A
Inventor
David Albert Green
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Kolster Brandes Ltd
Original Assignee
Kolster Brandes Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Kolster Brandes Ltd filed Critical Kolster Brandes Ltd
Priority to GB1893556A priority Critical patent/GB799681A/en
Publication of GB799681A publication Critical patent/GB799681A/en
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03H—IMPEDANCE NETWORKS, e.g. RESONANT CIRCUITS; RESONATORS
    • H03H2/00—Networks using elements or techniques not provided for in groups H03H3/00 - H03H21/00
    • H03H2/005—Coupling circuits between transmission lines or antennas and transmitters, receivers or amplifiers
    • H03H2/008—Receiver or amplifier input circuits

Landscapes

  • Near-Field Transmission Systems (AREA)

Abstract

799,681. Radio receiving circuits. KOLSTERBRANDES, Ltd. June 19, 1956, No. 18935/56. Class 40 (5). In a radio receiving set a valve 1 is connected to switch contact 3 via the inner conductor of a coaxial cable 2, while high-frequency tuned circuit 7 is connected to contact 5 via the cable outer. The cable 2-if necessary with the addition of series inductance or capacitance 6-is made half-wave (or a multiple) resonant at the resonance frequency of the tuned circuit, so that with moving contact 4 bridging contacts 3, 5 the circuit 7 and valve 1 are effectively directly connected together. On low-frequency wavebands, e.g. when moving contact 4 bridges contacts 3, 8 the cable is effectively additional stray circuit capacity.
GB1893556A 1956-06-19 1956-06-19 Radio receiver waveband selection circuit Expired GB799681A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB1893556A GB799681A (en) 1956-06-19 1956-06-19 Radio receiver waveband selection circuit

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB1893556A GB799681A (en) 1956-06-19 1956-06-19 Radio receiver waveband selection circuit

Publications (1)

Publication Number Publication Date
GB799681A true GB799681A (en) 1958-08-13

Family

ID=10120985

Family Applications (1)

Application Number Title Priority Date Filing Date
GB1893556A Expired GB799681A (en) 1956-06-19 1956-06-19 Radio receiver waveband selection circuit

Country Status (1)

Country Link
GB (1) GB799681A (en)

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