GB574844A - Improvements in and relating to wave impulse generators - Google Patents

Improvements in and relating to wave impulse generators

Info

Publication number
GB574844A
GB574844A GB852843A GB852843A GB574844A GB 574844 A GB574844 A GB 574844A GB 852843 A GB852843 A GB 852843A GB 852843 A GB852843 A GB 852843A GB 574844 A GB574844 A GB 574844A
Authority
GB
United Kingdom
Prior art keywords
photo
cathode
spark gap
illuminated
discharge device
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
GB852843A
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.)
British Thomson Houston Co Ltd
Original Assignee
British Thomson Houston 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 British Thomson Houston Co Ltd filed Critical British Thomson Houston Co Ltd
Priority to GB852843A priority Critical patent/GB574844A/en
Publication of GB574844A publication Critical patent/GB574844A/en
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
    • H01J40/00—Photoelectric discharge tubes not involving the ionisation of a gas
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
    • H01J19/00—Details of vacuum tubes of the types covered by group H01J21/00
    • H01J19/82—Circuit arrangements not adapted to a particular application of the tube and not otherwise provided for
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
    • H01J25/00—Transit-time tubes, e.g. klystrons, travelling-wave tubes, magnetrons
    • H01J25/50—Magnetrons, i.e. tubes with a magnet system producing an H-field crossing the E-field
    • H01J25/52—Magnetrons, i.e. tubes with a magnet system producing an H-field crossing the E-field with an electron space having a shape that does not prevent any electron from moving completely around the cathode or guide electrode
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03B—GENERATION OF OSCILLATIONS, DIRECTLY OR BY FREQUENCY-CHANGING, BY CIRCUITS EMPLOYING ACTIVE ELEMENTS WHICH OPERATE IN A NON-SWITCHING MANNER; GENERATION OF NOISE BY SUCH CIRCUITS
    • H03B11/00—Generation of oscillations using a shock-excited tuned circuit
    • H03B11/04—Generation of oscillations using a shock-excited tuned circuit excited by interrupter
    • H03B11/08—Generation of oscillations using a shock-excited tuned circuit excited by interrupter interrupter being discharge tube

Landscapes

  • Microwave Tubes (AREA)
  • Discharge Lamp (AREA)

Abstract

574,844. Electron discharge apparatus. BRITISH THOMSON-HOUSTON CO., Ltd. (General Electric Co.). May 27, 1943, No. 8528. [Classes 39 (i) and 40 (v)] An electronic discharge device producing high-frequency oscillations includes a photocathode which is illuminated intermittently to produce a periodic functioning of the discharge device. For example, a spark gap 30, 31 operated intermittently by a coil 35 and condenser 33 produces a powerful and very rapidly intermittent light which passes through a perforated tubular anode 12 and a grid 11 and falls on a cathode 10 composed of an antimony and caesium coating deposited on a nickel base. The emission of photo-electrons causes the valve to function in circuit 18 and high-frequency oscillations are emitted. This photo-cathode illuminated by a spark gap may also be used in a velocity modulation tube as described in Specification 544,850 or in a magnetron. Specification 293,107, [Class 39 (i)], also is referred to.
GB852843A 1943-05-27 1943-05-27 Improvements in and relating to wave impulse generators Expired GB574844A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB852843A GB574844A (en) 1943-05-27 1943-05-27 Improvements in and relating to wave impulse generators

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB852843A GB574844A (en) 1943-05-27 1943-05-27 Improvements in and relating to wave impulse generators

Publications (1)

Publication Number Publication Date
GB574844A true GB574844A (en) 1946-01-23

Family

ID=9854155

Family Applications (1)

Application Number Title Priority Date Filing Date
GB852843A Expired GB574844A (en) 1943-05-27 1943-05-27 Improvements in and relating to wave impulse generators

Country Status (1)

Country Link
GB (1) GB574844A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2148048A (en) * 1983-10-12 1985-05-22 English Electric Valve Co Ltd Photocathode for a crossed-field discharge tube

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2148048A (en) * 1983-10-12 1985-05-22 English Electric Valve Co Ltd Photocathode for a crossed-field discharge tube

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