FR759326A - Cathodes à chauffage direct ou à chauffage indirect - Google Patents

Cathodes à chauffage direct ou à chauffage indirect

Info

Publication number
FR759326A
FR759326A FR759326DA FR759326A FR 759326 A FR759326 A FR 759326A FR 759326D A FR759326D A FR 759326DA FR 759326 A FR759326 A FR 759326A
Authority
FR
France
Prior art keywords
heated
cathodes
indirectly
directly
directly heated
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
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.)
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 FR759326A publication Critical patent/FR759326A/fr
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
    • H01J9/00—Apparatus or processes specially adapted for the manufacture, installation, removal, maintenance of electric discharge tubes, discharge lamps, or parts thereof; Recovery of material from discharge tubes or lamps
    • H01J9/02—Manufacture of electrodes or electrode systems
    • H01J9/04—Manufacture of electrodes or electrode systems of thermionic cathodes
    • H01J9/042—Manufacture, activation of the emissive part

Landscapes

  • Engineering & Computer Science (AREA)
  • Manufacturing & Machinery (AREA)
FR759326D 1932-08-15 1933-08-07 Cathodes à chauffage direct ou à chauffage indirect Expired FR759326A (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE759326X 1932-08-15

Publications (1)

Publication Number Publication Date
FR759326A true FR759326A (fr) 1934-02-01

Family

ID=6660485

Family Applications (1)

Application Number Title Priority Date Filing Date
FR759326D Expired FR759326A (fr) 1932-08-15 1933-08-07 Cathodes à chauffage direct ou à chauffage indirect

Country Status (1)

Country Link
FR (1) FR759326A (fr)

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