FR629840A - Improvements to electronic discharge tubes and means to avoid electrical leakage in these tubes - Google Patents

Improvements to electronic discharge tubes and means to avoid electrical leakage in these tubes

Info

Publication number
FR629840A
FR629840A FR629840DA FR629840A FR 629840 A FR629840 A FR 629840A FR 629840D A FR629840D A FR 629840DA FR 629840 A FR629840 A FR 629840A
Authority
FR
France
Prior art keywords
tubes
electrical leakage
avoid electrical
electronic discharge
discharge 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
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.)
Compagnie Francaise Thomson Houston SA
Original Assignee
Compagnie Francaise Thomson Houston SA
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 Compagnie Francaise Thomson Houston SA filed Critical Compagnie Francaise Thomson Houston SA
Application granted granted Critical
Publication of FR629840A publication Critical patent/FR629840A/en
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
    • H01J19/00—Details of vacuum tubes of the types covered by group H01J21/00
    • H01J19/42—Mounting, supporting, spacing, or insulating of electrodes or of electrode assemblies
    • H01J19/44—Insulation between electrodes or supports within the vacuum space
FR629840D 1926-03-06 1927-02-25 Improvements to electronic discharge tubes and means to avoid electrical leakage in these tubes Expired FR629840A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US629840XA 1926-03-06 1926-03-06

Publications (1)

Publication Number Publication Date
FR629840A true FR629840A (en) 1927-11-17

Family

ID=22046127

Family Applications (1)

Application Number Title Priority Date Filing Date
FR629840D Expired FR629840A (en) 1926-03-06 1927-02-25 Improvements to electronic discharge tubes and means to avoid electrical leakage in these tubes

Country Status (1)

Country Link
FR (1) FR629840A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE739138C (en) * 1928-03-08 1943-09-14 Opta Radio Ag Electron tubes with a cathode, the highly emissive coating of which is dusted onto the cathode body by eddy current heating
DE755478C (en) * 1937-03-30 1944-09-28 Philips Patentverwaltung Electron tubes with at least one secondary emission electrode
DE749599C (en) * 1928-03-01 1944-11-27 Arrangement for the evaporation of metals

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE749599C (en) * 1928-03-01 1944-11-27 Arrangement for the evaporation of metals
DE739138C (en) * 1928-03-08 1943-09-14 Opta Radio Ag Electron tubes with a cathode, the highly emissive coating of which is dusted onto the cathode body by eddy current heating
DE755478C (en) * 1937-03-30 1944-09-28 Philips Patentverwaltung Electron tubes with at least one secondary emission electrode

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