FR791328A - Improvements to thermo-ionic lamp circuits - Google Patents

Improvements to thermo-ionic lamp circuits

Info

Publication number
FR791328A
FR791328A FR791328DA FR791328A FR 791328 A FR791328 A FR 791328A FR 791328D A FR791328D A FR 791328DA FR 791328 A FR791328 A FR 791328A
Authority
FR
France
Prior art keywords
thermo
ionic
lamp circuits
lamp
circuits
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.)
EMI Ltd
Electrical and Musical Industries Ltd
Original Assignee
EMI Ltd
Electrical and Musical Industries 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 EMI Ltd, Electrical and Musical Industries Ltd filed Critical EMI Ltd
Application granted granted Critical
Publication of FR791328A publication Critical patent/FR791328A/en
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03G—CONTROL OF AMPLIFICATION
    • H03G9/00—Combinations of two or more types of control, e.g. gain control and tone control
    • H03G9/02—Combinations of two or more types of control, e.g. gain control and tone control in untuned amplifiers
    • H03G9/04—Combinations of two or more types of control, e.g. gain control and tone control in untuned amplifiers having discharge tubes
    • H03G9/06—Combinations of two or more types of control, e.g. gain control and tone control in untuned amplifiers having discharge tubes for gain control and tone control
    • H03G9/08—Combinations of two or more types of control, e.g. gain control and tone control in untuned amplifiers having discharge tubes for gain control and tone control incorporating negative feedback
FR791328D 1934-06-15 1935-06-15 Improvements to thermo-ionic lamp circuits Expired FR791328A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB791328X 1934-06-15

Publications (1)

Publication Number Publication Date
FR791328A true FR791328A (en) 1935-12-07

Family

ID=10504586

Family Applications (1)

Application Number Title Priority Date Filing Date
FR791328D Expired FR791328A (en) 1934-06-15 1935-06-15 Improvements to thermo-ionic lamp circuits

Country Status (1)

Country Link
FR (1) FR791328A (en)

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