GB470002A - Improvements in and relating to wireless and like receivers - Google Patents

Improvements in and relating to wireless and like receivers

Info

Publication number
GB470002A
GB470002A GB3049/36A GB304936A GB470002A GB 470002 A GB470002 A GB 470002A GB 3049/36 A GB3049/36 A GB 3049/36A GB 304936 A GB304936 A GB 304936A GB 470002 A GB470002 A GB 470002A
Authority
GB
United Kingdom
Prior art keywords
circuit
coupled
tuning range
receivers
relating
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
GB3049/36A
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.)
Individual
Original Assignee
Individual
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 Individual filed Critical Individual
Priority to GB3049/36A priority Critical patent/GB470002A/en
Priority to US121622A priority patent/US2151780A/en
Publication of GB470002A publication Critical patent/GB470002A/en
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03D—DEMODULATION OR TRANSFERENCE OF MODULATION FROM ONE CARRIER TO ANOTHER
    • H03D7/00—Transference of modulation from one carrier to another, e.g. frequency-changing
    • H03D7/18—Modifications of frequency-changers for eliminating image frequencies

Landscapes

  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Magnetic Resonance Imaging Apparatus (AREA)
  • Amplifiers (AREA)

Abstract

470,002. Transformers. LE MARCHANT, P. A. Jan. 31, 1936, No. 3049. [Class 38 (ii)] [Also in Group XL] In a superheterodyne wireless receiver, a band-pass filter 1, 2 is coupled by a circuit 3, 9 resonant above the tuning range and a circuit 11, 12 resonant below the tuning range. A coil 10 in the aerial circuit is coupled to both coils 9, 11 in the opposite sense so that loss of signal energy on the shorter wavelengths is prevented. The Specification gives details of the coil structure 9 10, 11. Specification 412,253 is referred to.
GB3049/36A 1936-01-31 1936-01-31 Improvements in and relating to wireless and like receivers Expired GB470002A (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
GB3049/36A GB470002A (en) 1936-01-31 1936-01-31 Improvements in and relating to wireless and like receivers
US121622A US2151780A (en) 1936-01-31 1937-01-21 Preselector system for radio receivers

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB3049/36A GB470002A (en) 1936-01-31 1936-01-31 Improvements in and relating to wireless and like receivers

Publications (1)

Publication Number Publication Date
GB470002A true GB470002A (en) 1937-08-03

Family

ID=9750984

Family Applications (1)

Application Number Title Priority Date Filing Date
GB3049/36A Expired GB470002A (en) 1936-01-31 1936-01-31 Improvements in and relating to wireless and like receivers

Country Status (2)

Country Link
US (1) US2151780A (en)
GB (1) GB470002A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2171872A (en) * 1985-02-28 1986-09-03 Rca Corp Frequency selective network

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2171872A (en) * 1985-02-28 1986-09-03 Rca Corp Frequency selective network

Also Published As

Publication number Publication date
US2151780A (en) 1939-03-28

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