FR839913A - Cathode for discharge tubes - Google Patents

Cathode for discharge tubes

Info

Publication number
FR839913A
FR839913A FR839913DA FR839913A FR 839913 A FR839913 A FR 839913A FR 839913D A FR839913D A FR 839913DA FR 839913 A FR839913 A FR 839913A
Authority
FR
France
Prior art keywords
cathode
discharge tubes
tubes
discharge
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.)
Robert Bosch Fernsehanlagen GmbH
Original Assignee
Fernseh GmbH
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 Fernseh GmbH filed Critical Fernseh GmbH
Application granted granted Critical
Publication of FR839913A publication Critical patent/FR839913A/en
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
    • H01J40/00—Photoelectric discharge tubes not involving the ionisation of a gas
    • H01J40/02—Details
    • H01J40/04—Electrodes
    • H01J40/06—Photo-emissive cathodes
FR839913D 1937-06-28 1938-06-28 Cathode for discharge tubes Expired FR839913A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE839913X 1937-06-28

Publications (1)

Publication Number Publication Date
FR839913A true FR839913A (en) 1939-04-14

Family

ID=1554171

Family Applications (1)

Application Number Title Priority Date Filing Date
FR839913D Expired FR839913A (en) 1937-06-28 1938-06-28 Cathode for discharge tubes

Country Status (1)

Country Link
FR (1) FR839913A (en)

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