FR569581A - Improvements to thermionic devices - Google Patents

Improvements to thermionic devices

Info

Publication number
FR569581A
FR569581A FR569581DA FR569581A FR 569581 A FR569581 A FR 569581A FR 569581D A FR569581D A FR 569581DA FR 569581 A FR569581 A FR 569581A
Authority
FR
France
Prior art keywords
thermionic devices
thermionic
devices
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
Other languages
French (fr)
Inventor
Ernest Yeoman Robinson
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 filed Critical
Application granted granted Critical
Publication of FR569581A publication Critical patent/FR569581A/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
FR569581D 1922-08-08 1923-08-07 Improvements to thermionic devices Expired FR569581A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB2149522A GB205613A (en) 1922-08-08 1922-08-08 Improvements in thermionic devices

Publications (1)

Publication Number Publication Date
FR569581A true FR569581A (en) 1924-04-14

Family

ID=10163894

Family Applications (1)

Application Number Title Priority Date Filing Date
FR569581D Expired FR569581A (en) 1922-08-08 1923-08-07 Improvements to thermionic devices

Country Status (4)

Country Link
DE (1) DE545249C (en)
FR (1) FR569581A (en)
GB (1) GB205613A (en)
NL (1) NL17256C (en)

Also Published As

Publication number Publication date
NL17256C (en)
DE545249C (en) 1932-03-02
GB205613A (en) 1923-10-25

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