GB1055695A - Electron tube - Google Patents

Electron tube

Info

Publication number
GB1055695A
GB1055695A GB23300/64A GB2330064A GB1055695A GB 1055695 A GB1055695 A GB 1055695A GB 23300/64 A GB23300/64 A GB 23300/64A GB 2330064 A GB2330064 A GB 2330064A GB 1055695 A GB1055695 A GB 1055695A
Authority
GB
United Kingdom
Prior art keywords
heater
cathode
temperature
emissive
series
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
GB23300/64A
Other languages
English (en)
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.)
Varian Medical Systems Inc
Original Assignee
Varian Associates Inc
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 Varian Associates Inc filed Critical Varian Associates Inc
Publication of GB1055695A publication Critical patent/GB1055695A/en
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
    • H01J19/00—Details of vacuum tubes of the types covered by group H01J21/00
    • H01J19/74—Cooling arrangements
    • 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
    • H01J1/135—Circuit arrangements therefor, e.g. for temperature control
    • 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
    • H01J1/22—Heaters
    • 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
    • H01J21/10—Tubes with a single discharge path having electrostatic control means only with one or more immovable internal control electrodes, e.g. triode, pentode, octode
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03F—AMPLIFIERS
    • H03F1/00—Details of amplifiers with only discharge tubes, only semiconductor devices or only unspecified devices as amplifying elements
    • H03F1/52—Circuit arrangements for protecting such amplifiers
    • H03F1/54—Circuit arrangements for protecting such amplifiers with tubes only
    • H03F1/544—Protection of filaments

Landscapes

  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Solid Thermionic Cathode (AREA)
  • Electron Sources, Ion Sources (AREA)
GB23300/64A 1963-06-12 1964-06-04 Electron tube Expired GB1055695A (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US287263A US3299317A (en) 1963-06-12 1963-06-12 Electron tube having a quick heating cathode with means to apply a variable voltage to the quick heating cathode
US287264A US3249791A (en) 1963-06-12 1963-06-12 Electron tube and combination for sensing and regulating the cathode temperature thereof

Publications (1)

Publication Number Publication Date
GB1055695A true GB1055695A (en) 1967-01-18

Family

ID=26964367

Family Applications (1)

Application Number Title Priority Date Filing Date
GB23300/64A Expired GB1055695A (en) 1963-06-12 1964-06-04 Electron tube

Country Status (6)

Country Link
US (2) US3299317A (fr)
CH (1) CH434491A (fr)
DE (1) DE1281585B (fr)
FR (1) FR1398465A (fr)
GB (1) GB1055695A (fr)
NL (1) NL6406606A (fr)

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1614566B1 (de) * 1967-07-17 1970-11-05 Siemens Ag Indirekt geheizte Vorratskathode,insbesondere MK-Kathode
US4295077A (en) * 1980-02-14 1981-10-13 Rca Corporation Circumferentially apertured cylindrical grid for electron tube
FR2502840A1 (fr) * 1981-03-24 1982-10-01 Alexandrov Vladimir Cathode reticulaire a chauffage direct pour tube electronique et procede de fabrication d'une telle cathode
US4781640A (en) * 1985-01-24 1988-11-01 Varian Associates, Inc. Basket electrode shaping
NL8501242A (nl) * 1985-05-02 1986-12-01 Philips Nv Elektronenbuis.
US5015908A (en) * 1989-01-23 1991-05-14 Varian Associates, Inc. Fast warm-up cathode for high power vacuum tubes
GB2614081B (en) * 2021-12-21 2024-03-13 Siderise Special Products Ltd Cladding or wall cap system

Family Cites Families (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1994076A (en) * 1931-03-02 1935-03-12 Telefunken Gmbh Temperature control
US1963844A (en) * 1932-01-22 1934-06-19 Kemet Lab Co Inc Thermionic device
US2290819A (en) * 1940-08-09 1942-07-21 Warshawsky Isador Electron discharge device and circuit
DE858584C (de) * 1942-02-22 1952-12-08 Siemens Ag Einrichtung zum Anlassen der Gluehkathoden von Senderoehren
US2459997A (en) * 1947-05-24 1949-01-25 Electrons Inc Partially indirectly heated cathode structure for gas tubes
US2586291A (en) * 1948-12-11 1952-02-19 Stewart Warner Corp Electronic temperature control
US2687488A (en) * 1952-10-23 1954-08-24 Rca Corp Gas tube construction
DE968789C (de) * 1954-10-24 1958-03-27 Siemens Reiniger Werke Ag Diagnostik-Roentgenapparat
NL88786C (fr) * 1955-04-02
US2875377A (en) * 1956-10-16 1959-02-24 Raytheon Mfg Co Electron discharge devices
DE1146985B (de) * 1960-11-04 1963-04-11 Siemens Ag Halbindirekt geheizte Kathode fuer Elektronenroehren
US3172002A (en) * 1960-11-21 1965-03-02 Rca Corp Cathode mount and method of fabrication

Also Published As

Publication number Publication date
US3249791A (en) 1966-05-03
CH434491A (fr) 1967-04-30
FR1398465A (fr) 1965-05-07
DE1281585B (de) 1968-10-31
US3299317A (en) 1967-01-17
NL6406606A (fr) 1964-12-14

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