FR658399A - Perfectionnements apportés aux appareils destinés à amplifier les variations électriques - Google Patents

Perfectionnements apportés aux appareils destinés à amplifier les variations électriques

Info

Publication number
FR658399A
FR658399A FR658399DA FR658399A FR 658399 A FR658399 A FR 658399A FR 658399D A FR658399D A FR 658399DA FR 658399 A FR658399 A FR 658399A
Authority
FR
France
Prior art keywords
improvements made
devices intended
electrical variations
amplify electrical
amplify
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.)
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 FR658399A publication Critical patent/FR658399A/fr
Expired legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
    • G01R9/00—Instruments employing mechanical resonance
    • G01R9/04—Instruments employing mechanical resonance using vibrating reeds, e.g. for measuring frequency
    • G01R9/08—Instruments employing mechanical resonance using vibrating reeds, e.g. for measuring frequency piezoelectrically driven
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
    • H01J17/00—Gas-filled discharge tubes with solid cathode
    • H01J17/02—Details
    • H01J17/34—One or more circuit elements structurally associated with the tube
    • 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
    • H01J19/78—One or more circuit elements structurally associated with the tube
    • 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
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03F—AMPLIFIERS
    • H03F3/00—Amplifiers with only discharge tubes or only semiconductor devices as amplifying elements
    • H03F3/189—High-frequency amplifiers, e.g. radio frequency amplifiers
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03F—AMPLIFIERS
    • H03F99/00—Subject matter not provided for in other groups of this subclass

Landscapes

  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Amplifiers (AREA)
FR658399D 1927-08-22 1928-07-30 Perfectionnements apportés aux appareils destinés à amplifier les variations électriques Expired FR658399A (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US21456127A 1927-08-22 1927-08-22

Publications (1)

Publication Number Publication Date
FR658399A true FR658399A (fr) 1929-06-14

Family

ID=22799556

Family Applications (1)

Application Number Title Priority Date Filing Date
FR658399D Expired FR658399A (fr) 1927-08-22 1928-07-30 Perfectionnements apportés aux appareils destinés à amplifier les variations électriques

Country Status (3)

Country Link
BE (1) BE353651A (enrdf_load_stackoverflow)
FR (1) FR658399A (enrdf_load_stackoverflow)
GB (1) GB295997A (enrdf_load_stackoverflow)

Also Published As

Publication number Publication date
GB295997A (en) 1929-04-18
BE353651A (enrdf_load_stackoverflow)

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