FR835012A - Assembly comprising an electric discharge tube fitted with an auxiliary cathode which emits secondary electrons - Google Patents

Assembly comprising an electric discharge tube fitted with an auxiliary cathode which emits secondary electrons

Info

Publication number
FR835012A
FR835012A FR835012DA FR835012A FR 835012 A FR835012 A FR 835012A FR 835012D A FR835012D A FR 835012DA FR 835012 A FR835012 A FR 835012A
Authority
FR
France
Prior art keywords
assembly
discharge tube
electric discharge
secondary electrons
auxiliary cathode
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 FR835012A publication Critical patent/FR835012A/en
Expired legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G05—CONTROLLING; REGULATING
    • G05F—SYSTEMS FOR REGULATING ELECTRIC OR MAGNETIC VARIABLES
    • G05F1/00—Automatic systems in which deviations of an electric quantity from one or more predetermined values are detected at the output of the system and fed back to a device within the system to restore the detected quantity to its predetermined value or values, i.e. retroactive systems
    • G05F1/10—Regulating voltage or current
    • G05F1/46—Regulating voltage or current wherein the variable actually regulated by the final control device is dc
    • G05F1/52—Regulating voltage or current wherein the variable actually regulated by the final control device is dc using discharge tubes in series with the load as final control devices
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
    • H01J43/00—Secondary-emission tubes; Electron-multiplier tubes
    • H01J43/02—Tubes in which one or a few electrodes are secondary-electron emitting electrodes
    • H01J43/025—Circuits therefor

Landscapes

  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • General Physics & Mathematics (AREA)
  • Radar, Positioning & Navigation (AREA)
  • Automation & Control Theory (AREA)
  • Fluid-Pressure Circuits (AREA)
  • Cold Cathode And The Manufacture (AREA)
FR835012D 1937-03-10 1938-03-09 Assembly comprising an electric discharge tube fitted with an auxiliary cathode which emits secondary electrons Expired FR835012A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
NL202088X 1937-03-10

Publications (1)

Publication Number Publication Date
FR835012A true FR835012A (en) 1938-12-09

Family

ID=19778390

Family Applications (1)

Application Number Title Priority Date Filing Date
FR835012D Expired FR835012A (en) 1937-03-10 1938-03-09 Assembly comprising an electric discharge tube fitted with an auxiliary cathode which emits secondary electrons

Country Status (6)

Country Link
US (1) US2235190A (en)
BE (1) BE426821A (en)
CH (1) CH202088A (en)
FR (1) FR835012A (en)
GB (1) GB498577A (en)
NL (1) NL47700C (en)

Families Citing this family (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
BE449722A (en) * 1942-03-13
BE469303A (en) * 1945-10-01
US2541019A (en) * 1946-07-27 1951-02-13 Fed Telecomm Lab Inc Demodulator system
US2598326A (en) * 1946-11-20 1952-05-27 Emi Ltd Negative feedback amplifier
US2617750A (en) * 1950-01-10 1952-11-11 Interchem Corp Decorative and protective sheet
BE505422A (en) * 1950-08-25
US2859345A (en) * 1953-03-12 1958-11-04 Rca Corp Electrically tunable oscillator
US3027517A (en) * 1958-08-21 1962-03-27 Edgerton Germeshausen And Grie Blocking oscillator system

Also Published As

Publication number Publication date
GB498577A (en) 1939-01-10
BE426821A (en)
US2235190A (en) 1941-03-18
NL47700C (en)
CH202088A (en) 1938-12-31

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