[go: up one dir, main page]

FR717498A - Improvements made to devices generating oscillations - Google Patents

Improvements made to devices generating oscillations

Info

Publication number
FR717498A
FR717498A FR717498DA FR717498A FR 717498 A FR717498 A FR 717498A FR 717498D A FR717498D A FR 717498DA FR 717498 A FR717498 A FR 717498A
Authority
FR
France
Prior art keywords
improvements made
devices generating
generating oscillations
oscillations
devices
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 FR717498A publication Critical patent/FR717498A/en
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03B—GENERATION OF OSCILLATIONS, DIRECTLY OR BY FREQUENCY-CHANGING, BY CIRCUITS EMPLOYING ACTIVE ELEMENTS WHICH OPERATE IN A NON-SWITCHING MANNER; GENERATION OF NOISE BY SUCH CIRCUITS
    • H03B5/00—Generation of oscillations using amplifier with regenerative feedback from output to input
    • H03B5/30—Generation of oscillations using amplifier with regenerative feedback from output to input with frequency-determining element being electromechanical resonator
    • H03B5/32—Generation of oscillations using amplifier with regenerative feedback from output to input with frequency-determining element being electromechanical resonator being a piezoelectric resonator
    • H03B5/34—Generation of oscillations using amplifier with regenerative feedback from output to input with frequency-determining element being electromechanical resonator being a piezoelectric resonator active element in amplifier being vacuum tube
FR717498D 1930-05-22 1931-05-22 Improvements made to devices generating oscillations Expired FR717498A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US717498XA 1930-05-22 1930-05-22

Publications (1)

Publication Number Publication Date
FR717498A true FR717498A (en) 1932-01-09

Family

ID=22103326

Family Applications (1)

Application Number Title Priority Date Filing Date
FR717498D Expired FR717498A (en) 1930-05-22 1931-05-22 Improvements made to devices generating oscillations

Country Status (1)

Country Link
FR (1) FR717498A (en)

Similar Documents

Publication Publication Date Title
FR715101A (en) Improvements to ventilation devices
FR717498A (en) Improvements made to devices generating oscillations
FR711055A (en) Improvements to the speakers
FR704486A (en) Improvements to acoustic emission devices
SU37452A1 (en) Harmonic
FR711828A (en) Improvements to incineration equipment
FR704988A (en) Improvements to threading devices
FR728441A (en) Improvements to thermionic oscillation generators
FR705108A (en) Improvements to teaching devices
FR724497A (en) Improvements to indicating devices
FR723069A (en) Improvements to oscillator tubes
FR688704A (en) Improvements to anesthesia devices
FR703560A (en) Gasifier
FR703629A (en) Gasifier
FR729127A (en) Sink supports
FR676371A (en) Improvements to ignition devices
FR688215A (en) Improvements to filing devices
FR712483A (en) Improvements to compensating devices
FR688070A (en) Improvements to gavanoplasty devices
FR695973A (en) Improvements to cinematographic devices
FR718594A (en) Improvements to cinematographic devices
FR710892A (en) Improvements to cinematographic devices
FR709822A (en) Improvements to cinematographic devices
FR696656A (en) Improvements to boilers and similar devices
FR677963A (en) Improvements to evaporation equipment