GB539490A - Improvements in or relating to electron discharge arrangements employing electron beams - Google Patents

Improvements in or relating to electron discharge arrangements employing electron beams

Info

Publication number
GB539490A
GB539490A GB4546/40A GB454640A GB539490A GB 539490 A GB539490 A GB 539490A GB 4546/40 A GB4546/40 A GB 4546/40A GB 454640 A GB454640 A GB 454640A GB 539490 A GB539490 A GB 539490A
Authority
GB
United Kingdom
Prior art keywords
shield
beams
march
transformer
cathode
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
GB4546/40A
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.)
Marconis Wireless Telegraph Co Ltd
Original Assignee
Marconis Wireless Telegraph 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 Marconis Wireless Telegraph Co Ltd filed Critical Marconis Wireless Telegraph Co Ltd
Publication of GB539490A publication Critical patent/GB539490A/en
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
    • H01J31/00—Cathode ray tubes; Electron beam tubes
    • H01J31/02—Cathode ray tubes; Electron beam tubes having one or more output electrodes which may be impacted selectively by the ray or beam, and onto, from, or over which the ray or beam may be deflected or de-focused
    • H01J31/04—Cathode ray tubes; Electron beam tubes having one or more output electrodes which may be impacted selectively by the ray or beam, and onto, from, or over which the ray or beam may be deflected or de-focused with only one or two output electrodes with only two electrically independant groups or electrodes

Landscapes

  • Particle Accelerators (AREA)

Abstract

539,490. Cathode-ray tubes thermionic valve circuits. MARCONI'S WIRELESS TELEGRAPH CO., Ltd. March 11, 1940, No. 4546. Convention date, March 10, 1939. [Classes 39 (i) and 40 (v)] In an electron discharge tube having two or more adjacent beams 1, 2 the current flow in one, say No. 1, is controlled by the second beam which is modulated. The beams are focused by an electromagnet 20 and enclosed in a shield 16 maintained at a potential positive to the cathodes 10, 11. The shield may be of rectangular cross-section and the end plates may be separate from the main part of the shield and at a different potential. The output anode 14 is connected to a load circuit; the anode 15 for the controlling beam may be at a negative potential so that electrons in the beam return to the cathode 11. The device may be used as a relay ; as a generator of square topped wave-form pulses sinusoidal currents are supplied by a transformer 21. Modulating currents are injected by a transformer 22 to vary the time intervals of the pulses.
GB4546/40A 1939-03-10 1940-03-11 Improvements in or relating to electron discharge arrangements employing electron beams Expired GB539490A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US539490XA 1939-03-10 1939-03-10

Publications (1)

Publication Number Publication Date
GB539490A true GB539490A (en) 1941-09-12

Family

ID=21987665

Family Applications (1)

Application Number Title Priority Date Filing Date
GB4546/40A Expired GB539490A (en) 1939-03-10 1940-03-11 Improvements in or relating to electron discharge arrangements employing electron beams

Country Status (1)

Country Link
GB (1) GB539490A (en)

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