GB154982A - Improvement in valves used for wireless transmission - Google Patents

Improvement in valves used for wireless transmission

Info

Publication number
GB154982A
GB154982A GB21594/19A GB2159419A GB154982A GB 154982 A GB154982 A GB 154982A GB 21594/19 A GB21594/19 A GB 21594/19A GB 2159419 A GB2159419 A GB 2159419A GB 154982 A GB154982 A GB 154982A
Authority
GB
United Kingdom
Prior art keywords
resistances
improvement
filament
wireless transmission
valves used
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
GB21594/19A
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
Priority to DEM70541D priority Critical patent/DE403492C/de
Priority to NL7572D priority patent/NL7572C/xx
Application filed by Individual filed Critical Individual
Priority to GB21594/19A priority patent/GB154982A/en
Priority to US407664A priority patent/US1654513A/en
Priority to FR523613A priority patent/FR523613A/fr
Publication of GB154982A publication Critical patent/GB154982A/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
    • H01J1/135—Circuit arrangements therefor, e.g. for temperature control

Landscapes

  • Resistance Heating (AREA)
  • Other Investigation Or Analysis Of Materials By Electrical Means (AREA)
GB21594/19A 1919-09-03 1919-09-03 Improvement in valves used for wireless transmission Expired GB154982A (en)

Priority Applications (5)

Application Number Priority Date Filing Date Title
DEM70541D DE403492C (de) 1919-09-03 Anordnung und Mittel zur Beseitigung der ungleichmaessigen Erhitzung der Gluehdraehte in Elektronenroehren
NL7572D NL7572C (enrdf_load_stackoverflow) 1919-09-03
GB21594/19A GB154982A (en) 1919-09-03 1919-09-03 Improvement in valves used for wireless transmission
US407664A US1654513A (en) 1919-09-03 1920-09-02 Electron-emission device
FR523613A FR523613A (fr) 1919-09-03 1920-09-03 Perfectionnements aux soupapes utilisées pour la transmission sans fil

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB21594/19A GB154982A (en) 1919-09-03 1919-09-03 Improvement in valves used for wireless transmission

Publications (1)

Publication Number Publication Date
GB154982A true GB154982A (en) 1920-12-03

Family

ID=10165535

Family Applications (1)

Application Number Title Priority Date Filing Date
GB21594/19A Expired GB154982A (en) 1919-09-03 1919-09-03 Improvement in valves used for wireless transmission

Country Status (4)

Country Link
US (1) US1654513A (enrdf_load_stackoverflow)
FR (1) FR523613A (enrdf_load_stackoverflow)
GB (1) GB154982A (enrdf_load_stackoverflow)
NL (1) NL7572C (enrdf_load_stackoverflow)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2424526A (en) * 1943-01-11 1947-07-22 Gen Electric Electric discharge device
NL142201B (nl) * 1947-11-28 Alcan Res & Dev Werkwijze voor het kleuren van een anodisch geoxydeerd aluminium werkstuk, alsmede aldus gekleurd, anodisch geoxydeerd werkstuk.

Also Published As

Publication number Publication date
FR523613A (fr) 1921-08-20
NL7572C (enrdf_load_stackoverflow)
US1654513A (en) 1927-12-27

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