FR48186E - Indirectly heated cathode for discharge tubes - Google Patents

Indirectly heated cathode for discharge tubes

Info

Publication number
FR48186E
FR48186E FR48186DA FR48186E FR 48186 E FR48186 E FR 48186E FR 48186D A FR48186D A FR 48186DA FR 48186 E FR48186 E FR 48186E
Authority
FR
France
Prior art keywords
discharge tubes
indirectly heated
heated cathode
cathode
indirectly
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)
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.)
Telefunken AG
Original Assignee
Telefunken AG
Telefunken Gesellschaft fuer Drahtlose Telegraphie mbH
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 Telefunken AG, Telefunken Gesellschaft fuer Drahtlose Telegraphie mbH filed Critical Telefunken AG
Application granted granted Critical
Publication of FR48186E publication Critical patent/FR48186E/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
FR48186D 1936-03-03 1937-03-01 Indirectly heated cathode for discharge tubes Expired FR48186E (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE475620X 1936-03-03

Publications (1)

Publication Number Publication Date
FR48186E true FR48186E (en) 1937-11-03

Family

ID=6541881

Family Applications (1)

Application Number Title Priority Date Filing Date
FR48186D Expired FR48186E (en) 1936-03-03 1937-03-01 Indirectly heated cathode for discharge tubes

Country Status (4)

Country Link
BE (1) BE420214A (en)
FR (1) FR48186E (en)
GB (1) GB475620A (en)
NL (1) NL45733C (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE857537C (en) * 1942-07-17 1952-12-01 Telefunken Gmbh Electric discharge tubes with indirectly heated cathode

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE857537C (en) * 1942-07-17 1952-12-01 Telefunken Gmbh Electric discharge tubes with indirectly heated cathode

Also Published As

Publication number Publication date
NL45733C (en) 1939-03-15
GB475620A (en) 1937-11-23
BE420214A (en)

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