FR659799A - Tube électronique avec fil de chauffe centré - Google Patents

Tube électronique avec fil de chauffe centré

Info

Publication number
FR659799A
FR659799A FR659799DA FR659799A FR 659799 A FR659799 A FR 659799A FR 659799D A FR659799D A FR 659799DA FR 659799 A FR659799 A FR 659799A
Authority
FR
France
Prior art keywords
heating wire
electronic tube
centered
centered heating
electronic
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)
French (fr)
Inventor
Siegmund Loewe
Edgar Romhild
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 FR659799A publication Critical patent/FR659799A/fr
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
FR659799D 1927-08-31 1928-08-31 Tube électronique avec fil de chauffe centré Expired FR659799A (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE296415X 1927-08-31

Publications (1)

Publication Number Publication Date
FR659799A true FR659799A (fr) 1929-07-03

Family

ID=6090372

Family Applications (1)

Application Number Title Priority Date Filing Date
FR659799D Expired FR659799A (fr) 1927-08-31 1928-08-31 Tube électronique avec fil de chauffe centré

Country Status (4)

Country Link
US (1) US1893953A (enrdf_load_stackoverflow)
FR (1) FR659799A (enrdf_load_stackoverflow)
GB (1) GB296415A (enrdf_load_stackoverflow)
NL (1) NL26845C (enrdf_load_stackoverflow)

Also Published As

Publication number Publication date
US1893953A (en) 1933-01-10
NL26845C (enrdf_load_stackoverflow)
GB296415A (en) 1929-08-01

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