CH549283A - MESH CATHODE FOR ELECTRON TUBES. - Google Patents

MESH CATHODE FOR ELECTRON TUBES.

Info

Publication number
CH549283A
CH549283A CH1303172A CH1303172A CH549283A CH 549283 A CH549283 A CH 549283A CH 1303172 A CH1303172 A CH 1303172A CH 1303172 A CH1303172 A CH 1303172A CH 549283 A CH549283 A CH 549283A
Authority
CH
Switzerland
Prior art keywords
electron tubes
mesh cathode
cathode
mesh
tubes
Prior art date
Application number
CH1303172A
Other languages
German (de)
Original Assignee
Bbc Brown Boveri & Cie
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 Bbc Brown Boveri & Cie filed Critical Bbc Brown Boveri & Cie
Priority to CH1303172A priority Critical patent/CH549283A/en
Priority to DE2247364A priority patent/DE2247364C2/en
Priority to FR7331695A priority patent/FR2198253B3/fr
Priority to NLAANVRAGE7312150,A priority patent/NL182184C/en
Priority to GB4160873A priority patent/GB1436429A/en
Priority to US394489A priority patent/US3875445A/en
Publication of CH549283A publication Critical patent/CH549283A/en

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
    • H01J1/15—Cathodes heated directly by an electric current
    • H01J1/18—Supports; Vibration-damping arrangements
CH1303172A 1972-09-06 1972-09-06 MESH CATHODE FOR ELECTRON TUBES. CH549283A (en)

Priority Applications (6)

Application Number Priority Date Filing Date Title
CH1303172A CH549283A (en) 1972-09-06 1972-09-06 MESH CATHODE FOR ELECTRON TUBES.
DE2247364A DE2247364C2 (en) 1972-09-06 1972-09-27 Two-tier mesh cathode for grid-controlled transmission tubes of the highest performance
FR7331695A FR2198253B3 (en) 1972-09-06 1973-09-03
NLAANVRAGE7312150,A NL182184C (en) 1972-09-06 1973-09-04 NET CATHOD FOR A TRANSMITTER.
GB4160873A GB1436429A (en) 1972-09-06 1973-09-04 Meshed cathode for electron tubes
US394489A US3875445A (en) 1972-09-06 1973-09-05 Meshed cathode for electron tubes of the grid-controlled type

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CH1303172A CH549283A (en) 1972-09-06 1972-09-06 MESH CATHODE FOR ELECTRON TUBES.

Publications (1)

Publication Number Publication Date
CH549283A true CH549283A (en) 1974-05-15

Family

ID=4388683

Family Applications (1)

Application Number Title Priority Date Filing Date
CH1303172A CH549283A (en) 1972-09-06 1972-09-06 MESH CATHODE FOR ELECTRON TUBES.

Country Status (6)

Country Link
US (1) US3875445A (en)
CH (1) CH549283A (en)
DE (1) DE2247364C2 (en)
FR (1) FR2198253B3 (en)
GB (1) GB1436429A (en)
NL (1) NL182184C (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
SU1042105A1 (en) * 1980-02-05 1983-09-15 Организация П/Я Х-5263 Grid-type filamentary cathode for vacuum tubes and its manufacture method

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE863831C (en) * 1950-05-17 1953-01-19 Siemens Ag Cathode for electron tubes
DE1823411U (en) * 1958-07-01 1960-12-15 Siemens Ag CATHODE FOR ELECTRON TUBES.
GB987461A (en) * 1962-05-31 1965-03-31 Standard Telephones Cables Ltd Thermionic valves
FR1455956A (en) * 1965-07-20 1966-05-20 Thomson Houston Comp Francaise Direct heating cathode improvements
DE1901208A1 (en) * 1969-01-10 1970-07-30 Siemens Ag Tubular mesh cathode for high-power electron tubes, especially transmission tubes
DE1901207A1 (en) * 1969-01-10 1970-08-06 Siemens Ag Mesh cathode for high-power electron tubes, especially transmission tubes

Also Published As

Publication number Publication date
US3875445A (en) 1975-04-01
NL7312150A (en) 1974-03-08
DE2247364C2 (en) 1984-05-17
NL182184C (en) 1988-01-18
NL182184B (en) 1987-08-17
FR2198253B3 (en) 1976-08-06
DE2247364A1 (en) 1974-03-14
FR2198253A1 (en) 1974-03-29
GB1436429A (en) 1976-05-19

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Legal Events

Date Code Title Description
PL Patent ceased