GB585448A - Improvements in or relating to electron discharge tubes - Google Patents

Improvements in or relating to electron discharge tubes

Info

Publication number
GB585448A
GB585448A GB749341A GB749341A GB585448A GB 585448 A GB585448 A GB 585448A GB 749341 A GB749341 A GB 749341A GB 749341 A GB749341 A GB 749341A GB 585448 A GB585448 A GB 585448A
Authority
GB
United Kingdom
Prior art keywords
grid
valve
disc
cathode
relating
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
GB749341A
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
Priority to GB749341A priority Critical patent/GB585448A/en
Priority to ES175939A priority patent/ES175939A1/en
Publication of GB585448A publication Critical patent/GB585448A/en
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
    • H01J21/00—Vacuum tubes
    • H01J21/36—Tubes with flat electrodes, e.g. disc electrode
    • 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

  • Hybrid Cells (AREA)

Abstract

585,448. Thermionic valves. STANDARD TELEPHONES & CABLES, Ltd., and FOSTER, J. June 13, 1941, No. 7493. [Class 39 (i)] Thermionic valves particularly for ultrahigh frequency operation, comprise an envelope separated into two portions 1, 2 by an apertured metal disc 3 which extends outside the valve. The anode 12 which may be thimble-shaped is sealed to the outer end of one envelope portion. A unitary structure comprising mica plates 8 on which the grid and cathode are carried is mounted on a pinch 6 on the other portion. The grid is wound on supporting wires 7, and is connected electrically with the disc 3 by springs. The lower turns of the grid wires are cut away to enable the cathode to be brought close to the operative side of the grid. The disc 3 is earthed and functions to screen the input and output sides of the valve from one another ; it may also provide the support for the valve. Specification 585,447 is referred to.
GB749341A 1941-06-13 1941-06-13 Improvements in or relating to electron discharge tubes Expired GB585448A (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
GB749341A GB585448A (en) 1941-06-13 1941-06-13 Improvements in or relating to electron discharge tubes
ES175939A ES175939A1 (en) 1941-06-13 1946-11-29 IMPROVEMENTS IN OR RELATED TO ELECTRONIC DISCHARGE PIPES

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB749341A GB585448A (en) 1941-06-13 1941-06-13 Improvements in or relating to electron discharge tubes

Publications (1)

Publication Number Publication Date
GB585448A true GB585448A (en) 1947-02-07

Family

ID=9834174

Family Applications (1)

Application Number Title Priority Date Filing Date
GB749341A Expired GB585448A (en) 1941-06-13 1941-06-13 Improvements in or relating to electron discharge tubes

Country Status (2)

Country Link
ES (1) ES175939A1 (en)
GB (1) GB585448A (en)

Also Published As

Publication number Publication date
ES175939A1 (en) 1947-01-01

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