GB471982A - Improvements in variably coupled tuned circuits for use, for example, in superheterodyne wireless receivers - Google Patents

Improvements in variably coupled tuned circuits for use, for example, in superheterodyne wireless receivers

Info

Publication number
GB471982A
GB471982A GB8268/36A GB826836A GB471982A GB 471982 A GB471982 A GB 471982A GB 8268/36 A GB8268/36 A GB 8268/36A GB 826836 A GB826836 A GB 826836A GB 471982 A GB471982 A GB 471982A
Authority
GB
United Kingdom
Prior art keywords
wireless receivers
tuned circuits
variably coupled
coupled tuned
superheterodyne wireless
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
GB8268/36A
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.)
BAE Systems Aerospace Inc
Original Assignee
Hazeltine Corp
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 Hazeltine Corp filed Critical Hazeltine Corp
Publication of GB471982A publication Critical patent/GB471982A/en
Expired legal-status Critical Current

Links

Classifications

    • HELECTRICITY
    • H03ELECTRONIC CIRCUITRY
    • H03HIMPEDANCE NETWORKS, e.g. RESONANT CIRCUITS; RESONATORS
    • H03H7/00Multiple-port networks comprising only passive electrical elements as network components
    • H03H7/01Frequency selective two-port networks
    • H03H7/0153Electrical filters; Controlling thereof
    • H03H7/0161Bandpass filters
    • H03H7/0169Intermediate frequency filters
    • H03H7/0176Intermediate frequency filters witout magnetic core

Landscapes

  • Networks Using Active Elements (AREA)

Abstract

471,982. Transformers. HAZELTINE CORPORATION. March 19, 1936, No. 8268. Convention date, April 22, 1935. [Class 38 (ii)] [Also in Group XL] An adjustable auxiliary coupling between a pair of circuits forming a band-pass filter is provided by a device resembling a variometer and constructed as shown in the Figure. Design details are given.
GB8268/36A 1935-04-22 1936-03-19 Improvements in variably coupled tuned circuits for use, for example, in superheterodyne wireless receivers Expired GB471982A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US471982XA 1935-04-22 1935-04-22

Publications (1)

Publication Number Publication Date
GB471982A true GB471982A (en) 1937-09-15

Family

ID=21947600

Family Applications (1)

Application Number Title Priority Date Filing Date
GB8268/36A Expired GB471982A (en) 1935-04-22 1936-03-19 Improvements in variably coupled tuned circuits for use, for example, in superheterodyne wireless receivers

Country Status (1)

Country Link
GB (1) GB471982A (en)

Similar Documents

Publication Publication Date Title
GB514064A (en) Improvements in or relating to electrical wave filters
GB471982A (en) Improvements in variably coupled tuned circuits for use, for example, in superheterodyne wireless receivers
GB464970A (en) Improvements in coupling coil systems for oscillatory electric circuits
GB470002A (en) Improvements in and relating to wireless and like receivers
GB465030A (en) Improvements in thermionic amplifiers
GB467862A (en) Improvements in tuning coils for radio receivers or the like
GB466250A (en) Improved coupling systems for high frequency electric circuits
GB383352A (en) Improvements in or relating to a method and apparatus for wireless tuning circuits
GB449224A (en) Improvements in or relating to television receivers
GB413724A (en) Improvements in or relating to superheterodyne wireless receiving sets
GB467637A (en) Improvements in coupling means for permeability tuned circuits for wireless reception
GB461256A (en) Improvements in or relating to radio receiving apparatus
GB420702A (en) Improved coupling arrangement for a radio receiver
GB457398A (en) Multi-range superheterodyne receiver
GB435135A (en) Improvements in and relating to interference eliminator for wireless receivers
GB471507A (en) Variable inductance tuning device
GB476666A (en) Method and device for eliminating parasites in wireless receiving systems
GB490104A (en) Coupling arrangements for oscillatory circuits
GB491532A (en) Improved means for varying the selectivity of radio receivers
GB501644A (en) Improvements in or relating to radio receivers
GB449512A (en) Improvements in coupling devices for thermionic amplifiers
GB485713A (en) Improvements in radio-receiving circuits employing band-pass filters
GB397822A (en) High-frequency coupling system
GB515194A (en) Improvements in coupling devices for high-frequency electric circuits
GB377639A (en) Improvements in or relating to superheterodyne receivers