FR660855A - Improvements to electric vacuum tubes - Google Patents

Improvements to electric vacuum tubes

Info

Publication number
FR660855A
FR660855A FR660855DA FR660855A FR 660855 A FR660855 A FR 660855A FR 660855D A FR660855D A FR 660855DA FR 660855 A FR660855 A FR 660855A
Authority
FR
France
Prior art keywords
electric vacuum
vacuum tubes
tubes
electric
vacuum
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
Other languages
French (fr)
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.)
Metropolitan Vickers Electrical Co Ltd
Original Assignee
Metropolitan Vickers Electrical Co Ltd
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 Metropolitan Vickers Electrical Co Ltd filed Critical Metropolitan Vickers Electrical Co Ltd
Application granted granted Critical
Publication of FR660855A publication Critical patent/FR660855A/en
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
    • H01J9/00—Apparatus or processes specially adapted for the manufacture, installation, removal, maintenance of electric discharge tubes, discharge lamps, or parts thereof; Recovery of material from discharge tubes or lamps
    • H01J9/02—Manufacture of electrodes or electrode systems
    • H01J9/08—Manufacture of heaters for indirectly-heated cathodes
    • 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
    • H01J19/42—Mounting, supporting, spacing, or insulating of electrodes or of electrode assemblies
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
    • H01J2893/00—Discharge tubes and lamps
    • H01J2893/0001—Electrodes and electrode systems suitable for discharge tubes or lamps
    • H01J2893/0002—Construction arrangements of electrode systems

Landscapes

  • Engineering & Computer Science (AREA)
  • Manufacturing & Machinery (AREA)
  • Solid Thermionic Cathode (AREA)
  • Resistance Heating (AREA)
FR660855D 1927-09-23 1928-09-22 Improvements to electric vacuum tubes Expired FR660855A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB25139/27A GB297966A (en) 1927-09-23 1927-09-23 Improvements in vacuum electric tube devices

Publications (1)

Publication Number Publication Date
FR660855A true FR660855A (en) 1929-07-18

Family

ID=10222842

Family Applications (1)

Application Number Title Priority Date Filing Date
FR660855D Expired FR660855A (en) 1927-09-23 1928-09-22 Improvements to electric vacuum tubes

Country Status (3)

Country Link
US (1) US1987711A (en)
FR (1) FR660855A (en)
GB (1) GB297966A (en)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2524001A (en) * 1948-05-19 1950-09-26 Raytheon Mfg Co Compressed cathode support structure
US2532215A (en) * 1948-05-26 1950-11-28 Raytheon Mfg Co Cathode structure
US4376259A (en) * 1981-03-09 1983-03-08 Gte Products Corporation High intensity discharge lamp including arc extinguishing means

Also Published As

Publication number Publication date
GB297966A (en) 1928-10-04
US1987711A (en) 1935-01-15

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