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 NL7572D priority Critical patent/NL7572C/xx
Priority to DEM70541D priority patent/DE403492C/de
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
NL7572D NL7572C (cs) 1919-09-03
DEM70541D DE403492C (de) 1919-09-03 Anordnung und Mittel zur Beseitigung der ungleichmaessigen Erhitzung der Gluehdraehte in Elektronenroehren
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 (cs)
FR (1) FR523613A (cs)
GB (1) GB154982A (cs)
NL (1) NL7572C (cs)

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
NL67449C (cs) * 1947-11-28 1900-01-01

Also Published As

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

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