GB306513A - Improvements in cathodes for electron discharge devices - Google Patents

Improvements in cathodes for electron discharge devices

Info

Publication number
GB306513A
GB306513A GB5837/29A GB583729A GB306513A GB 306513 A GB306513 A GB 306513A GB 5837/29 A GB5837/29 A GB 5837/29A GB 583729 A GB583729 A GB 583729A GB 306513 A GB306513 A GB 306513A
Authority
GB
United Kingdom
Prior art keywords
filaments
point
cancelled
leads
rotating
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
GB5837/29A
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.)
Individual
Original Assignee
Individual
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 Individual filed Critical Individual
Publication of GB306513A publication Critical patent/GB306513A/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

Landscapes

  • Solid Thermionic Cathode (AREA)
  • Electron Sources, Ion Sources (AREA)
GB5837/29A 1928-02-22 1929-02-22 Improvements in cathodes for electron discharge devices Expired GB306513A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE306513X 1928-02-22

Publications (1)

Publication Number Publication Date
GB306513A true GB306513A (en) 1930-06-23

Family

ID=6121154

Family Applications (1)

Application Number Title Priority Date Filing Date
GB5837/29A Expired GB306513A (en) 1928-02-22 1929-02-22 Improvements in cathodes for electron discharge devices

Country Status (5)

Country Link
US (1) US1839323A (forum.php)
BE (1) BE358360A (forum.php)
FR (1) FR670129A (forum.php)
GB (1) GB306513A (forum.php)
NL (1) NL29677C (forum.php)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2734144A (en) * 1956-02-07 hoover

Also Published As

Publication number Publication date
BE358360A (forum.php)
US1839323A (en) 1932-01-05
NL29677C (forum.php)
FR670129A (fr) 1929-11-25

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