GB473623A - Improvements in or relating to radio receivers - Google Patents

Improvements in or relating to radio receivers

Info

Publication number
GB473623A
GB473623A GB1103236A GB1103236A GB473623A GB 473623 A GB473623 A GB 473623A GB 1103236 A GB1103236 A GB 1103236A GB 1103236 A GB1103236 A GB 1103236A GB 473623 A GB473623 A GB 473623A
Authority
GB
United Kingdom
Prior art keywords
coils
aerial
coil
switches
waves
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
GB1103236A
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
Priority to BE419794D priority Critical patent/BE419794A/xx
Application filed by Kolster Brandes Ltd filed Critical Kolster Brandes Ltd
Priority to GB1103236A priority patent/GB473623A/en
Priority to FR818886D priority patent/FR818886A/en
Publication of GB473623A publication Critical patent/GB473623A/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)
  • Radio Relay Systems (AREA)

Abstract

473,623. Wireless receiving systems. KOLSTER-BRANDES, Ltd., and SMYTH, C. N. April 17, 1936, No. 11032. [Class 40 (v)] A dipole aerial D is connected through a transmission line L to a centre-tapped primary short-wave coil P coupled to a tuned secondary coil S. Connected between the centre tapping of coil P and an earth line 3 are medium and long wave primary coils P1, P2 coupled to similar secondary coils S1, S2, connected in series with the coil S, the three latter coils being shunted by a tuning condenser C. For receiving short waves the coils P1, P2, S1, S2, are short circuited by switches 2, 2a the aerial D acting as a true dipole. For other wavebands the aerial D acts as a T-aerial with single down-lead, the coils P2, S2 being short circuited by switches 1, 1a for medium waves, while for long waves all the switches are opened, as shown.
GB1103236A 1936-04-17 1936-04-17 Improvements in or relating to radio receivers Expired GB473623A (en)

Priority Applications (3)

Application Number Priority Date Filing Date Title
BE419794D BE419794A (en) 1936-04-17
GB1103236A GB473623A (en) 1936-04-17 1936-04-17 Improvements in or relating to radio receivers
FR818886D FR818886A (en) 1936-04-17 1936-12-31 Coupling devices for the transmission of electrical energy

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB1103236A GB473623A (en) 1936-04-17 1936-04-17 Improvements in or relating to radio receivers

Publications (1)

Publication Number Publication Date
GB473623A true GB473623A (en) 1937-10-18

Family

ID=9978795

Family Applications (1)

Application Number Title Priority Date Filing Date
GB1103236A Expired GB473623A (en) 1936-04-17 1936-04-17 Improvements in or relating to radio receivers

Country Status (3)

Country Link
BE (1) BE419794A (en)
FR (1) FR818886A (en)
GB (1) GB473623A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE975147C (en) * 1950-02-22 1961-09-07 Siemens Elektrogeraete Gmbh Coupling device for the simultaneous connection of a VHF antenna and a short-medium-long wave antenna to high-frequency receivers for several wave ranges

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE975147C (en) * 1950-02-22 1961-09-07 Siemens Elektrogeraete Gmbh Coupling device for the simultaneous connection of a VHF antenna and a short-medium-long wave antenna to high-frequency receivers for several wave ranges

Also Published As

Publication number Publication date
FR818886A (en) 1937-10-05
BE419794A (en)

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