GB300613A - Improvements in vacuum electric tube devices - Google Patents

Improvements in vacuum electric tube devices

Info

Publication number
GB300613A
GB300613A GB33382/28A GB3338228A GB300613A GB 300613 A GB300613 A GB 300613A GB 33382/28 A GB33382/28 A GB 33382/28A GB 3338228 A GB3338228 A GB 3338228A GB 300613 A GB300613 A GB 300613A
Authority
GB
United Kingdom
Prior art keywords
anode
closed loop
filament
cathode
electric tube
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
GB33382/28A
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.)
Westinghouse Lamp Co
Original Assignee
Westinghouse Lamp Co
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 Westinghouse Lamp Co filed Critical Westinghouse Lamp Co
Publication of GB300613A publication Critical patent/GB300613A/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
    • H01J1/20—Cathodes heated indirectly by an electric current; Cathodes heated by electron or ion bombardment

Landscapes

  • Discharge Lamp (AREA)
GB33382/28A 1927-11-16 1928-11-14 Improvements in vacuum electric tube devices Expired GB300613A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US233537A US1945746A (en) 1927-11-16 1927-11-16 Electron discharge device with indirectly heated cathode

Publications (1)

Publication Number Publication Date
GB300613A true GB300613A (en) 1929-06-20

Family

ID=22877646

Family Applications (1)

Application Number Title Priority Date Filing Date
GB33382/28A Expired GB300613A (en) 1927-11-16 1928-11-14 Improvements in vacuum electric tube devices

Country Status (3)

Country Link
US (2) US1945746A (enrdf_load_stackoverflow)
GB (1) GB300613A (enrdf_load_stackoverflow)
NL (1) NL24661C (enrdf_load_stackoverflow)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3191089A (en) * 1965-06-22 Thermionic valve cathode
NL68498C (enrdf_load_stackoverflow) * 1948-03-15
US2909699A (en) * 1957-12-05 1959-10-20 Sylvania Electric Prod Electron discharge device

Also Published As

Publication number Publication date
NL24661C (enrdf_load_stackoverflow)
US1945746A (en) 1934-02-06
USRE19870E (en) 1936-02-25

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