FR809310A - Incandescent cathode relay tubes - Google Patents

Incandescent cathode relay tubes

Info

Publication number
FR809310A
FR809310A FR809310DA FR809310A FR 809310 A FR809310 A FR 809310A FR 809310D A FR809310D A FR 809310DA FR 809310 A FR809310 A FR 809310A
Authority
FR
France
Prior art keywords
cathode relay
incandescent cathode
relay tubes
tubes
incandescent
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.)
Koninklijke Philips NV
Original Assignee
Philips Gloeilampenfabrieken NV
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 Philips Gloeilampenfabrieken NV filed Critical Philips Gloeilampenfabrieken NV
Application granted granted Critical
Publication of FR809310A publication Critical patent/FR809310A/en
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
    • H01J17/00—Gas-filled discharge tubes with solid cathode
    • H01J17/50—Thermionic-cathode tubes
    • H01J17/52—Thermionic-cathode tubes with one cathode and one anode
    • H01J17/54—Thermionic-cathode tubes with one cathode and one anode having one or more control electrodes
    • H01J17/56—Thermionic-cathode tubes with one cathode and one anode having one or more control electrodes for preventing and then permitting ignition, but thereafter having no control
FR809310D 1936-08-10 1936-08-10 Incandescent cathode relay tubes Expired FR809310A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR809310T 1936-08-10

Publications (1)

Publication Number Publication Date
FR809310A true FR809310A (en) 1937-03-01

Family

ID=9253449

Family Applications (1)

Application Number Title Priority Date Filing Date
FR809310D Expired FR809310A (en) 1936-08-10 1936-08-10 Incandescent cathode relay tubes

Country Status (1)

Country Link
FR (1) FR809310A (en)

Similar Documents

Publication Publication Date Title
FR792264A (en) Cathode beam tubes
FR789209A (en) Incandescent lamps
FR807340A (en) Incandescent lamp improvements
FR819015A (en) Incandescent cathode for cathode ray tubes
FR51282E (en) Incandescent electrode for electric discharge tubes
FR776476A (en) Electron tube
FR825088A (en) Incandescent lamp improvements
FR827499A (en) Incandescent lamp improvements
FR818970A (en) Electron tube
FR809310A (en) Incandescent cathode relay tubes
FR788959A (en) Incandescent cathode activated
FR772763A (en) Incandescent lamps
FR831049A (en) Cathode ray tubes
FR697586A (en) Incandescent cathode roentgen bulb
FR820468A (en) Secondary electron tube
FR826429A (en) Secondary electron tube
FR756353A (en) Incandescent cathode tube
FR830241A (en) Improvements to incandescent electric lamps
FR715301A (en) Incandescent cathode tube
DK55953C (en) Double-guided electron tube.
FR825142A (en) Electric discharge tubes or incandescent lamps
FR739116A (en) Incandescent cathode electric discharge tube
FR836986A (en) Secondary electron tube
FR795162A (en) Thermionic cathode
FR750646A (en) Thermionic tubes