GB693902A - Improvements in or relating to superheterodyne radio receivers - Google Patents

Improvements in or relating to superheterodyne radio receivers

Info

Publication number
GB693902A
GB693902A GB3615/50A GB361550A GB693902A GB 693902 A GB693902 A GB 693902A GB 3615/50 A GB3615/50 A GB 3615/50A GB 361550 A GB361550 A GB 361550A GB 693902 A GB693902 A GB 693902A
Authority
GB
United Kingdom
Prior art keywords
valve
grid
oscillations
coupled
feb
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
GB3615/50A
Other languages
English (en)
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.)
Philips Electrical Industries Ltd
Original Assignee
Philips Electrical Industries 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 Philips Electrical Industries Ltd filed Critical Philips Electrical Industries Ltd
Publication of GB693902A publication Critical patent/GB693902A/en
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B15/00—Suppression or limitation of noise or interference
    • H04B15/02—Reducing interference from electric apparatus by means located at or near the interfering apparatus
    • H04B15/04—Reducing interference from electric apparatus by means located at or near the interfering apparatus the interference being caused by substantially sinusoidal oscillations, e.g. in a receiver or in a tape-recorder
    • H04B15/06—Reducing interference from electric apparatus by means located at or near the interfering apparatus the interference being caused by substantially sinusoidal oscillations, e.g. in a receiver or in a tape-recorder by local oscillators of receivers
    • 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
    • H03D7/06—Transference of modulation from one carrier to another, e.g. frequency-changing by means of discharge tubes having more than two electrodes
    • H03D7/08—Transference of modulation from one carrier to another, e.g. frequency-changing by means of discharge tubes having more than two electrodes the signals to be mixed being applied between the same two electrodes

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Power Engineering (AREA)
  • Superheterodyne Receivers (AREA)
  • Variable-Direction Aerials And Aerial Arrays (AREA)
  • Inductance-Capacitance Distribution Constants And Capacitance-Resistance Oscillators (AREA)
GB3615/50A 1949-02-16 1950-02-13 Improvements in or relating to superheterodyne radio receivers Expired GB693902A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
NL279129X 1949-02-16

Publications (1)

Publication Number Publication Date
GB693902A true GB693902A (en) 1953-07-08

Family

ID=19782232

Family Applications (1)

Application Number Title Priority Date Filing Date
GB3615/50A Expired GB693902A (en) 1949-02-16 1950-02-13 Improvements in or relating to superheterodyne radio receivers

Country Status (7)

Country Link
US (1) US2712597A (de)
BE (1) BE493900A (de)
CH (1) CH279129A (de)
DE (1) DE854233C (de)
FR (1) FR1012816A (de)
GB (1) GB693902A (de)
NL (1) NL83682C (de)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE967593C (de) * 1953-12-25 1957-11-28 Max Braun Fa Additive Trioden-Mischstufe fuer sehr hohe Frequenzen
US2980795A (en) * 1959-12-09 1961-04-18 Hazeltine Research Inc Autodyne converter

Family Cites Families (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR673718A (fr) * 1928-08-25 1930-01-18 Radiomodulation par les lampes à faible capacité intérieure
US2022085A (en) * 1931-12-14 1935-11-26 Hazeltine Corp Radioreceiver
US2053414A (en) * 1932-02-12 1936-09-08 Rca Corp Heterodyne receiving system
US2034513A (en) * 1933-04-01 1936-03-17 Rca Corp Combined detector oscillator circuit
US2153778A (en) * 1933-04-27 1939-04-11 Rca Corp Circuit arrangement
US2347826A (en) * 1941-10-21 1944-05-02 Lorain County Radio Corp High frequency switching means
US2409577A (en) * 1943-12-03 1946-10-15 Rca Corp Synchronized blocking oscillator
US2516272A (en) * 1945-12-07 1950-07-25 Philco Corp Frequency conversion system
BE481656A (de) * 1947-09-20
NL144910B (nl) * 1949-02-16 Pilkington Brothers Ltd Werkwijze voor het behandelen van een oppervlak van vlak glas en aan een oppervlak behandeld vlak glas, verkregen onder toepassing van deze werkwijze.

Also Published As

Publication number Publication date
NL83682C (de)
CH279129A (de) 1951-11-15
FR1012816A (fr) 1952-07-17
BE493900A (de)
DE854233C (de) 1952-11-04
US2712597A (en) 1955-07-05

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