GB590507A - Improvements in and relating to electron discharge devices - Google Patents

Improvements in and relating to electron discharge devices

Info

Publication number
GB590507A
GB590507A GB18316/44A GB1831644A GB590507A GB 590507 A GB590507 A GB 590507A GB 18316/44 A GB18316/44 A GB 18316/44A GB 1831644 A GB1831644 A GB 1831644A GB 590507 A GB590507 A GB 590507A
Authority
GB
United Kingdom
Prior art keywords
anode
cathode
extension
grid
cavity
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
GB18316/44A
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.)
STC PLC
Original Assignee
Standard Telephone and Cables PLC
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 Standard Telephone and Cables PLC filed Critical Standard Telephone and Cables PLC
Publication of GB590507A publication Critical patent/GB590507A/en
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
    • H01J21/00—Vacuum tubes
    • H01J21/02—Tubes with a single discharge path
    • H01J21/06—Tubes with a single discharge path having electrostatic control means only
    • H01J21/065—Devices for short wave tubes

Landscapes

  • Lasers (AREA)

Abstract

590,507. Thermionic valves. STANDARD TELEPHONES & CABLES, Ltd. Sept. 25, 1944, No. 18316. Convention date, Jan. 30, 1943. [Class 39 (i)] In an electron. discharge device of the type described in Specification 590,500 comprising an anode 9 with a cylindrical bore 10 enclosing a grid 12 and a cathode 8, the cathode support 5 has an extension 17 inside the cavity 11 within the anode to increase the coupling between the anode and the cathode. Alternatively, the extension 17 may comprise a disc or a sphere ; in this case the cavity 11 is hemispherical. The envelope comprises insulating portions 2, 3, separated by a copper ring-like member 4 which supports the grid structure 12. The grid comprises parallel bars and completely surrounds the cathode except for the extension 17. The anode may be formed from a solid block of metal, preferably copper and grooves 15 are bored in it to aid the dissipation of heat. The valve is used in conjunction with coaxial-line oscillatory circuits 18, 19. Coupling between these circuits externally to the valve may take place through slots 33 in the partition 26.
GB18316/44A 1943-01-30 1944-09-25 Improvements in and relating to electron discharge devices Expired GB590507A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US590507XA 1943-01-30 1943-01-30

Publications (1)

Publication Number Publication Date
GB590507A true GB590507A (en) 1947-07-21

Family

ID=22020509

Family Applications (1)

Application Number Title Priority Date Filing Date
GB18316/44A Expired GB590507A (en) 1943-01-30 1944-09-25 Improvements in and relating to electron discharge devices

Country Status (1)

Country Link
GB (1) GB590507A (en)

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