FR981089A - Tube à réactance - Google Patents

Tube à réactance

Info

Publication number
FR981089A
FR981089A FR981089DA FR981089A FR 981089 A FR981089 A FR 981089A FR 981089D A FR981089D A FR 981089DA FR 981089 A FR981089 A FR 981089A
Authority
FR
France
Prior art keywords
reactance tube
reactance
tube
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)
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 FR981089A publication Critical patent/FR981089A/fr
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03J—TUNING RESONANT CIRCUITS; SELECTING RESONANT CIRCUITS
    • H03J7/00—Automatic frequency control; Automatic scanning over a band of frequencies
    • H03J7/02—Automatic frequency control
    • H03J7/04—Automatic frequency control where the frequency control is accomplished by varying the electrical characteristics of a non-mechanically adjustable element or where the nature of the frequency controlling element is not significant
    • H03J7/042—Automatic frequency control where the frequency control is accomplished by varying the electrical characteristics of a non-mechanically adjustable element or where the nature of the frequency controlling element is not significant with reactance tube
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03C—MODULATION
    • H03C3/00—Angle modulation
    • H03C3/10—Angle modulation by means of variable impedance
    • H03C3/12—Angle modulation by means of variable impedance by means of a variable reactive element
    • H03C3/14—Angle modulation by means of variable impedance by means of a variable reactive element simulated by circuit comprising active element with at least three electrodes, e.g. reactance-tube circuit
FR981089D 1948-02-25 1949-02-18 Tube à réactance Expired FR981089A (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US10773A US2556883A (en) 1948-02-25 1948-02-25 Reactance tube circuit

Publications (1)

Publication Number Publication Date
FR981089A true FR981089A (fr) 1951-05-22

Family

ID=21747353

Family Applications (1)

Application Number Title Priority Date Filing Date
FR981089D Expired FR981089A (fr) 1948-02-25 1949-02-18 Tube à réactance

Country Status (3)

Country Link
US (1) US2556883A (fr)
BE (1) BE487522A (fr)
FR (1) FR981089A (fr)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2637838A (en) * 1950-05-10 1953-05-05 Gen Electric Amplitude modulation circuit

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2140339A (en) * 1935-10-03 1938-12-13 Rca Corp Frequency control circuits
US2181909A (en) * 1937-12-04 1939-12-05 Bell Telephone Labor Inc Negative impedance circuit
US2248132A (en) * 1940-01-27 1941-07-08 Rca Corp Frequency modulation
US2258470A (en) * 1940-04-27 1941-10-07 Radio Patents Corp Electronic reactance device
FR947097A (fr) * 1942-12-12 1949-06-22 Thomson Houston Comp Francaise Perfectionnements aux tubes à réactance
US2441504A (en) * 1945-08-25 1948-05-11 Gen Railway Signal Co Radio transmitting system

Also Published As

Publication number Publication date
US2556883A (en) 1951-06-12
BE487522A (fr)

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