GB437346A - Improvements in or relating to thermionic valves and like electron discharge devices - Google Patents

Improvements in or relating to thermionic valves and like electron discharge devices

Info

Publication number
GB437346A
GB437346A GB222734A GB222734A GB437346A GB 437346 A GB437346 A GB 437346A GB 222734 A GB222734 A GB 222734A GB 222734 A GB222734 A GB 222734A GB 437346 A GB437346 A GB 437346A
Authority
GB
United Kingdom
Prior art keywords
tube
relating
discharge devices
electron discharge
insulating
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
GB222734A
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.)
Telefunken AG
Original Assignee
Telefunken AG
Telefunken Gesellschaft fuer Drahtlose Telegraphie mbH
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 Telefunken AG, Telefunken Gesellschaft fuer Drahtlose Telegraphie mbH filed Critical Telefunken AG
Priority to GB222734A priority Critical patent/GB437346A/en
Publication of GB437346A publication Critical patent/GB437346A/en
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
    • H01J1/00—Details of electrodes, of magnetic control means, of screens, or of the mounting or spacing thereof, common to two or more basic types of discharge tubes or lamps
    • H01J1/02—Main electrodes
    • H01J1/13—Solid thermionic cathodes
    • H01J1/20—Cathodes heated indirectly by an electric current; Cathodes heated by electron or ion bombardment

Landscapes

  • Electrodes For Cathode-Ray Tubes (AREA)

Abstract

437,346. Thermionic cathodes. TELEFUNKEN GES. FUR DRAHTLOSE TELEGRAPHIE, 12, Hallesches Ufer, Berlin. Jan. 22, 1934, No. 2227. Void [Abridged as open to inspection under Sect. 91 of the Acts, July 21, 1934]. [Class 39 (i)] In an indirectly heated cathode the insulating- tube separating the heater from the cathode body proper is longer than that body which is of the same length as the heater; the cathode body may be in the form of a tube or of a metal deposit on the insulating tube. The support member or members are fixed to the insulating tube at a distance of at least one mm. from the metal coating.
GB222734A 1934-01-22 1934-01-22 Improvements in or relating to thermionic valves and like electron discharge devices Expired GB437346A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB222734A GB437346A (en) 1934-01-22 1934-01-22 Improvements in or relating to thermionic valves and like electron discharge devices

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB222734A GB437346A (en) 1934-01-22 1934-01-22 Improvements in or relating to thermionic valves and like electron discharge devices

Publications (1)

Publication Number Publication Date
GB437346A true GB437346A (en) 1935-10-28

Family

ID=9735820

Family Applications (1)

Application Number Title Priority Date Filing Date
GB222734A Expired GB437346A (en) 1934-01-22 1934-01-22 Improvements in or relating to thermionic valves and like electron discharge devices

Country Status (1)

Country Link
GB (1) GB437346A (en)

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