GB479936A - Improvements in or relating to thermionic valve amplifiers - Google Patents

Improvements in or relating to thermionic valve amplifiers

Info

Publication number
GB479936A
GB479936A GB2189436A GB2189436A GB479936A GB 479936 A GB479936 A GB 479936A GB 2189436 A GB2189436 A GB 2189436A GB 2189436 A GB2189436 A GB 2189436A GB 479936 A GB479936 A GB 479936A
Authority
GB
United Kingdom
Prior art keywords
potential
gains
amplifiers
tappings
variable
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
GB2189436A
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.)
CHRISTOPHER EDMUND GERVASE BAI
Plessey Co Ltd
Original Assignee
CHRISTOPHER EDMUND GERVASE BAI
Plessey Co 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 CHRISTOPHER EDMUND GERVASE BAI, Plessey Co Ltd filed Critical CHRISTOPHER EDMUND GERVASE BAI
Priority to GB2189436A priority Critical patent/GB479936A/en
Publication of GB479936A publication Critical patent/GB479936A/en
Expired legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01S—RADIO DIRECTION-FINDING; RADIO NAVIGATION; DETERMINING DISTANCE OR VELOCITY BY USE OF RADIO WAVES; LOCATING OR PRESENCE-DETECTING BY USE OF THE REFLECTION OR RERADIATION OF RADIO WAVES; ANALOGOUS ARRANGEMENTS USING OTHER WAVES
    • G01S3/00—Direction-finders for determining the direction from which infrasonic, sonic, ultrasonic, or electromagnetic waves, or particle emission, not having a directional significance, are being received
    • G01S3/02—Direction-finders for determining the direction from which infrasonic, sonic, ultrasonic, or electromagnetic waves, or particle emission, not having a directional significance, are being received using radio waves
    • G01S3/14—Systems for determining direction or deviation from predetermined direction
    • G01S3/143—Systems for determining direction or deviation from predetermined direction by vectorial combination of signals derived from differently oriented antennae

Landscapes

  • Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • General Physics & Mathematics (AREA)
  • Radar, Positioning & Navigation (AREA)
  • Remote Sensing (AREA)
  • Radar Systems Or Details Thereof (AREA)
  • Circuits Of Receivers In General (AREA)

Abstract

479,936. Directive wireless signalling ; valve circuits for wireless reception. PLESSEY CO., Ltd., and BAILEY, C. E. G. Aug. 8, 1936, No. 21894. Addition to 479,689. [Class 40 (v)] In a direction finder of the type described in the parent Specification in which two mutually perpendicular aerials feed independent amplifiers V1, V2 and an A.V.C. potential is derived from a non-directional aerial, compensating means are provided to maintain a constant relationship between the gains of the amplifiers over a range of gain control. The grids of valves V1, V2 are connected to variable tappings T1, T2 respectively on a potential divider RP supplied from the common A.V.C. potential source, and their cathode resistances R1, R2 are variable. The resistances R1, R2 are preliminarily adjusted to match the gains for high gain and the tappings T1, T2 for low gain.
GB2189436A 1936-08-08 1936-08-08 Improvements in or relating to thermionic valve amplifiers Expired GB479936A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB2189436A GB479936A (en) 1936-08-08 1936-08-08 Improvements in or relating to thermionic valve amplifiers

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB2189436A GB479936A (en) 1936-08-08 1936-08-08 Improvements in or relating to thermionic valve amplifiers

Publications (1)

Publication Number Publication Date
GB479936A true GB479936A (en) 1938-02-08

Family

ID=10170573

Family Applications (1)

Application Number Title Priority Date Filing Date
GB2189436A Expired GB479936A (en) 1936-08-08 1936-08-08 Improvements in or relating to thermionic valve amplifiers

Country Status (1)

Country Link
GB (1) GB479936A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2751445A (en) * 1953-01-12 1956-06-19 Rca Corp Video signal mixing amplifier circuits
US3868598A (en) * 1973-06-07 1975-02-25 Hewlett Packard Gmbh Combined potentiometer and amplifier circuitry

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2751445A (en) * 1953-01-12 1956-06-19 Rca Corp Video signal mixing amplifier circuits
US3868598A (en) * 1973-06-07 1975-02-25 Hewlett Packard Gmbh Combined potentiometer and amplifier circuitry

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