FR1485126A - Cathode à chauffage indirect, pour tubes électroniques - Google Patents

Cathode à chauffage indirect, pour tubes électroniques

Info

Publication number
FR1485126A
FR1485126A FR67411A FR67411A FR1485126A FR 1485126 A FR1485126 A FR 1485126A FR 67411 A FR67411 A FR 67411A FR 67411 A FR67411 A FR 67411A FR 1485126 A FR1485126 A FR 1485126A
Authority
FR
France
Prior art keywords
indirectly heated
electron tubes
heated cathode
cathode
tubes
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
FR67411A
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.)
Siemens and Halske AG
Siemens Corp
Original Assignee
Siemens and Halske AG
Siemens Corp
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 claimed from DES97897A external-priority patent/DE1223063B/de
Application filed by Siemens and Halske AG, Siemens Corp filed Critical Siemens and Halske AG
Priority to FR67411A priority Critical patent/FR1485126A/fr
Application granted granted Critical
Publication of FR1485126A publication Critical patent/FR1485126A/fr
Expired legal-status Critical Current

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C07—ORGANIC CHEMISTRY
    • C07D—HETEROCYCLIC COMPOUNDS
    • C07D307/00—Heterocyclic compounds containing five-membered rings having one oxygen atom as the only ring hetero atom
    • C07D307/77—Heterocyclic compounds containing five-membered rings having one oxygen atom as the only ring hetero atom ortho- or peri-condensed with carbocyclic rings or ring systems
    • C07D307/78—Benzo [b] furans; Hydrogenated benzo [b] furans
    • C07D307/82—Benzo [b] furans; Hydrogenated benzo [b] furans with hetero atoms or with carbon atoms having three bonds to hetero atoms with at the most one bond to halogen, e.g. ester or nitrile radicals, directly attached to carbon atoms of the hetero ring
    • 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

Landscapes

  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
FR67411A 1965-06-30 1966-06-29 Cathode à chauffage indirect, pour tubes électroniques Expired FR1485126A (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
FR67411A FR1485126A (fr) 1965-06-30 1966-06-29 Cathode à chauffage indirect, pour tubes électroniques

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DES97897A DE1223063B (de) 1965-06-30 1965-06-30 Mittelbar geheizte Kathode fuer elektrische Entladungsgefaesse und Verfahren zur Temperatur-regelung der Kathode
FR67411A FR1485126A (fr) 1965-06-30 1966-06-29 Cathode à chauffage indirect, pour tubes électroniques

Publications (1)

Publication Number Publication Date
FR1485126A true FR1485126A (fr) 1967-06-16

Family

ID=25998141

Family Applications (1)

Application Number Title Priority Date Filing Date
FR67411A Expired FR1485126A (fr) 1965-06-30 1966-06-29 Cathode à chauffage indirect, pour tubes électroniques

Country Status (1)

Country Link
FR (1) FR1485126A (fr)

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