GB289056A - Improvements relating to vacuum tubes - Google Patents

Improvements relating to vacuum tubes

Info

Publication number
GB289056A
GB289056A GB11455/28A GB1145528A GB289056A GB 289056 A GB289056 A GB 289056A GB 11455/28 A GB11455/28 A GB 11455/28A GB 1145528 A GB1145528 A GB 1145528A GB 289056 A GB289056 A GB 289056A
Authority
GB
United Kingdom
Prior art keywords
filament
wire
grid
insulator
opening
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
GB11455/28A
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.)
British Thomson Houston Co Ltd
Original Assignee
British Thomson Houston 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 British Thomson Houston Co Ltd filed Critical British Thomson Houston Co Ltd
Publication of GB289056A publication Critical patent/GB289056A/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
    • H01J1/15—Cathodes heated directly by an electric current
    • H01J1/18—Supports; Vibration-damping arrangements

Landscapes

  • Electron Sources, Ion Sources (AREA)
  • Discharge Lamps And Accessories Thereof (AREA)
  • Lasers (AREA)
  • Particle Accelerators (AREA)
GB11455/28A 1927-04-21 1928-04-18 Improvements relating to vacuum tubes Expired GB289056A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US185548A US1658653A (en) 1927-04-21 1927-04-21 Vacuum tube

Publications (1)

Publication Number Publication Date
GB289056A true GB289056A (en) 1928-10-25

Family

ID=22681459

Family Applications (1)

Application Number Title Priority Date Filing Date
GB11455/28A Expired GB289056A (en) 1927-04-21 1928-04-18 Improvements relating to vacuum tubes

Country Status (4)

Country Link
US (1) US1658653A (enExample)
BE (1) BE350525A (enExample)
FR (1) FR652567A (enExample)
GB (1) GB289056A (enExample)

Also Published As

Publication number Publication date
US1658653A (en) 1928-02-07
BE350525A (enExample)
FR652567A (fr) 1929-03-11

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