FR699749A - Device for adjusting the timbre of the electrically reproduced sound - Google Patents

Device for adjusting the timbre of the electrically reproduced sound

Info

Publication number
FR699749A
FR699749A FR699749DA FR699749A FR 699749 A FR699749 A FR 699749A FR 699749D A FR699749D A FR 699749DA FR 699749 A FR699749 A FR 699749A
Authority
FR
France
Prior art keywords
timbre
adjusting
reproduced sound
electrically reproduced
electrically
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.)
Koninklijke Philips NV
Original Assignee
Philips Gloeilampenfabrieken NV
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 Philips Gloeilampenfabrieken NV filed Critical Philips Gloeilampenfabrieken NV
Application granted granted Critical
Publication of FR699749A publication Critical patent/FR699749A/en
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03G—CONTROL OF AMPLIFICATION
    • H03G5/00—Tone control or bandwidth control in amplifiers
    • H03G5/02—Manually-operated control
    • H03G5/04—Manually-operated control in untuned amplifiers
    • H03G5/06—Manually-operated control in untuned amplifiers having discharge tubes
FR699749D 1929-08-09 1930-07-30 Device for adjusting the timbre of the electrically reproduced sound Expired FR699749A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
NL699749X 1929-08-09

Publications (1)

Publication Number Publication Date
FR699749A true FR699749A (en) 1931-02-19

Family

ID=19808999

Family Applications (1)

Application Number Title Priority Date Filing Date
FR699749D Expired FR699749A (en) 1929-08-09 1930-07-30 Device for adjusting the timbre of the electrically reproduced sound

Country Status (1)

Country Link
FR (1) FR699749A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2505254A (en) * 1944-09-07 1950-04-25 Rca Corp Tone control circuit

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2505254A (en) * 1944-09-07 1950-04-25 Rca Corp Tone control circuit

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