FR869421A - Lampes thermioniques ou analogues - Google Patents

Lampes thermioniques ou analogues

Info

Publication number
FR869421A
FR869421A FR869421DA FR869421A FR 869421 A FR869421 A FR 869421A FR 869421D A FR869421D A FR 869421DA FR 869421 A FR869421 A FR 869421A
Authority
FR
France
Prior art keywords
thermionic
similar lamps
lamps
similar
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)
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.)
Thales SA
Original Assignee
Le Materiel Telephonique Thomson CSF
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 Le Materiel Telephonique Thomson CSF filed Critical Le Materiel Telephonique Thomson CSF
Application granted granted Critical
Publication of FR869421A publication Critical patent/FR869421A/fr
Expired legal-status Critical Current

Links

Classifications

    • 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
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03F—AMPLIFIERS
    • H03F1/00—Details of amplifiers with only discharge tubes, only semiconductor devices or only unspecified devices as amplifying elements
    • H03F1/34—Negative-feedback-circuit arrangements with or without positive feedback
    • H03F1/36—Negative-feedback-circuit arrangements with or without positive feedback in discharge-tube amplifiers
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03F—AMPLIFIERS
    • H03F3/00—Amplifiers with only discharge tubes or only semiconductor devices as amplifying elements
    • H03F3/02—Amplifiers with only discharge tubes or only semiconductor devices as amplifying elements with tubes only

Landscapes

  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Electron Sources, Ion Sources (AREA)
  • Cold Cathode And The Manufacture (AREA)
FR869421D 1940-01-30 1941-01-21 Lampes thermioniques ou analogues Expired FR869421A (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB1853/40A GB538381A (en) 1940-01-30 1940-01-30 Improvements in or relating to thermionic valve apparatus

Publications (1)

Publication Number Publication Date
FR869421A true FR869421A (fr) 1942-02-02

Family

ID=9729147

Family Applications (1)

Application Number Title Priority Date Filing Date
FR869421D Expired FR869421A (fr) 1940-01-30 1941-01-21 Lampes thermioniques ou analogues

Country Status (4)

Country Link
US (1) US2294782A (en:Method)
BE (1) BE442181A (en:Method)
FR (1) FR869421A (en:Method)
GB (1) GB538381A (en:Method)

Families Citing this family (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2577454A (en) * 1946-08-22 1951-12-04 Hartford Nat Bank & Trust Co Cavity-resonator tube and associated circuit
US2467840A (en) * 1946-12-20 1949-04-19 George E Mallinckrodt Direct-current transformer
GB683061A (en) * 1948-01-24 1952-11-19 Emi Ltd Improvements relating to thermionic valves utilising secondary electron emission amplification
US2617948A (en) * 1948-11-18 1952-11-11 Heinz E Kallmann Electron multiplying device
US2731562A (en) * 1949-10-07 1956-01-17 Japan Broadcasting Corp System of controlling electron current in multiple electrode tubes
US2949578A (en) * 1957-01-29 1960-08-16 Jan A Narud Millimicrosecond pulse circuits
US3048788A (en) * 1958-08-15 1962-08-07 Edgerton Germeshausen And Grie Sweep signal generating system
US6642657B2 (en) * 1994-12-01 2003-11-04 Frederick M. Mako Robust pierce gun having multiple transmitting and emitting section
WO1997044805A1 (en) * 1996-05-22 1997-11-27 Schwartz, Ansel, M. Multi-stage electron gun having an electrostatic cavity

Also Published As

Publication number Publication date
GB538381A (en) 1941-07-31
US2294782A (en) 1942-09-01
BE442181A (en:Method)

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