FR709238A - Perfectionnements aux soupapes thermoioniques - Google Patents

Perfectionnements aux soupapes thermoioniques

Info

Publication number
FR709238A
FR709238A FR709238DA FR709238A FR 709238 A FR709238 A FR 709238A FR 709238D A FR709238D A FR 709238DA FR 709238 A FR709238 A FR 709238A
Authority
FR
France
Prior art keywords
thermionic valves
thermionic
valves
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.)
Parlophone Records Ltd
Original Assignee
Gramophone Co Ltd
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 Gramophone Co Ltd filed Critical Gramophone Co Ltd
Application granted granted Critical
Publication of FR709238A publication Critical patent/FR709238A/fr
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03G—CONTROL OF AMPLIFICATION
    • H03G3/00—Gain control in amplifiers or frequency changers without distortion of the input signal
    • H03G3/20—Automatic control
    • H03G3/22—Automatic control in amplifiers having discharge tubes
FR709238D 1930-01-27 1931-01-13 Perfectionnements aux soupapes thermoioniques Expired FR709238A (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB709238X 1930-01-27

Publications (1)

Publication Number Publication Date
FR709238A true FR709238A (fr) 1931-08-04

Family

ID=10494227

Family Applications (1)

Application Number Title Priority Date Filing Date
FR709238D Expired FR709238A (fr) 1930-01-27 1931-01-13 Perfectionnements aux soupapes thermoioniques

Country Status (1)

Country Link
FR (1) FR709238A (fr)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE755772C (de) * 1931-12-02 1952-06-05 Marconi Wireless Telegraph Co Empfaenger mit selbsttaetiger Schwundregelung
DE1033274B (de) * 1953-02-12 1958-07-03 Philips Nv Mischschaltung mit selbstschwingender Triode und Rueckkopplung der Zwischenfrequenz-Schwingungen vom Ausgangskreis auf den Eingangskreis der Mischroehre

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE755772C (de) * 1931-12-02 1952-06-05 Marconi Wireless Telegraph Co Empfaenger mit selbsttaetiger Schwundregelung
DE1033274B (de) * 1953-02-12 1958-07-03 Philips Nv Mischschaltung mit selbstschwingender Triode und Rueckkopplung der Zwischenfrequenz-Schwingungen vom Ausgangskreis auf den Eingangskreis der Mischroehre

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