GB471497A - Improvements in or relating to radiotelegraphy and radiotelephony receivers - Google Patents

Improvements in or relating to radiotelegraphy and radiotelephony receivers

Info

Publication number
GB471497A
GB471497A GB33160/35A GB3316035A GB471497A GB 471497 A GB471497 A GB 471497A GB 33160/35 A GB33160/35 A GB 33160/35A GB 3316035 A GB3316035 A GB 3316035A GB 471497 A GB471497 A GB 471497A
Authority
GB
United Kingdom
Prior art keywords
grids
radiotelegraphy
radiotelephony
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
GB33160/35A
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
Publication of GB471497A publication Critical patent/GB471497A/en
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B1/00—Details of transmission systems, not covered by a single one of groups H04B3/00 - H04B13/00; Details of transmission systems not characterised by the medium used for transmission
    • H04B1/06—Receivers
    • H04B1/16—Circuits
    • H04B1/1638—Special circuits to enhance selectivity of receivers not otherwise provided for

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Superheterodyne Receivers (AREA)

Abstract

471,497. Thermionic valves. BLONDEL, A. Nov. 29, 1935, No. 33160. Void. Convention date, Dec. 1, 1934. [Class 39 (i)] In an amplifying, modulating, or frequencychanging valve two or more control grids G<1>, G2, G3, are connected in parallel either within or externally of the envelope ; screens E<1> E2, E3 separate the grids from each other and the anode, and a suppressor grid g is used. In modifications a mixer valve also includes the anode and grid G<1>, Fig. 5, of the local oscillatory circuit, The grids may be given independent potentials and they may have leads to separate terminals for varying their connections.
GB33160/35A 1934-12-01 1935-11-29 Improvements in or relating to radiotelegraphy and radiotelephony receivers Expired GB471497A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
BE471497X 1934-12-01

Publications (1)

Publication Number Publication Date
GB471497A true GB471497A (en) 1937-09-02

Family

ID=3870167

Family Applications (1)

Application Number Title Priority Date Filing Date
GB33160/35A Expired GB471497A (en) 1934-12-01 1935-11-29 Improvements in or relating to radiotelegraphy and radiotelephony receivers

Country Status (1)

Country Link
GB (1) GB471497A (en)

Similar Documents

Publication Publication Date Title
GB471497A (en) Improvements in or relating to radiotelegraphy and radiotelephony receivers
GB401182A (en) Improvements in or relating to thermionic valve arrangements
GB417498A (en) Improvements in or relating to thermionic valves and like discharge devices
GB413973A (en) Improvements in or relating to short wave thermionic valve transmitter arrangements
GB529456A (en) Improvements in duplex vacuum-tube repeaters
GB467255A (en) Improvements in radiotelegraphic and radio-telephonic transmission
GB445402A (en) Improvements in or relating to the construction of grids for use in electron discharge devices
GB391021A (en) Improvements in or relating to thermionic valves
GB413544A (en) Improvements in or relating to thermionic valve circuit arrangements
GB686577A (en) Improvements in or relating to electron discharge devices
GB428452A (en) Improvements in or relating to thermionic valves
GB465141A (en) Television receiving circuit
GB457040A (en) Circuit and electron tube for the production of beat frequencies
GB470572A (en) Improvements in or relating to multi-grid thermionic valve oscillators
GB453400A (en) Improvements in or relating to thermionic amplifiers
GB520041A (en) Improvements in or relating to thermionic valves
GB534064A (en) Improvements in or relating to push-pull amplifying tubes
GB517671A (en) Improvements in or relating to thermionic valves and circuit arrangements therefor
GB675469A (en) Improvements in and relating to signal repeating circuits
GB411704A (en) Improvements in or relating to electric discharge devices
GB442196A (en) Improvements in or relating to electron discharge devices
GB401296A (en) Improvements in or relating to thermionic valves
GB528425A (en) Improvements in thermionic valves
GB482734A (en) Improvements in or relating to thermionic amplifiers
GB374416A (en) Improvements in or relating to electric discharge tubes