FR680840A - Coupling system to amplify electrical oscillations - Google Patents

Coupling system to amplify electrical oscillations

Info

Publication number
FR680840A
FR680840A FR680840DA FR680840A FR 680840 A FR680840 A FR 680840A FR 680840D A FR680840D A FR 680840DA FR 680840 A FR680840 A FR 680840A
Authority
FR
France
Prior art keywords
coupling system
electrical oscillations
amplify electrical
amplify
oscillations
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 FR680840A publication Critical patent/FR680840A/en
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03F—AMPLIFIERS
    • H03F1/00—Details of amplifiers with only discharge tubes, only semiconductor devices or only unspecified devices as amplifying elements
    • H03F1/42—Modifications of amplifiers to extend the bandwidth
    • H03F1/48—Modifications of amplifiers to extend the bandwidth of aperiodic amplifiers
    • H03F1/50—Modifications of amplifiers to extend the bandwidth of aperiodic amplifiers with tubes only

Landscapes

  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Amplifiers (AREA)
FR680840D 1928-10-04 1929-08-26 Coupling system to amplify electrical oscillations Expired FR680840A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
NL1920611X 1928-10-04

Publications (1)

Publication Number Publication Date
FR680840A true FR680840A (en) 1930-05-06

Family

ID=19873297

Family Applications (1)

Application Number Title Priority Date Filing Date
FR680840D Expired FR680840A (en) 1928-10-04 1929-08-26 Coupling system to amplify electrical oscillations

Country Status (2)

Country Link
US (1) US1920611A (en)
FR (1) FR680840A (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
NL288737A (en) * 1962-02-10

Also Published As

Publication number Publication date
US1920611A (en) 1933-08-01

Similar Documents

Publication Publication Date Title
FR680840A (en) Coupling system to amplify electrical oscillations
CH116462A (en) Device to facilitate hearing.
DK48345C (en) Distortion-free Amplifier coupling.
FR747890A (en) Coupling system for generating or amplifying electrical oscillations
FR653343A (en) Magnetic system to convert electrical oscillations into acoustic vibrations
FR634033A (en) Multiple amplifier device
FR659175A (en) Reinforced membrane to amplify sounds
FR680215A (en) Installation suitable for amplifying electrical oscillations
DK41901C (en) Sound amplification system.
FR623502A (en) Electro-magnetic amplifier
FR684139A (en) Amplifier for quadruplex telegraph system
AT105619B (en) Cattle hitch.
FR659177A (en) Coupling system
FR725049A (en) Device for amplifying sounds
FR614171A (en) Hollow bar assembly system
FR671434A (en) Device for amplifying the sound of the piano
DK39780C (en) Receive or Amplifier Tube.
FR665192A (en) Coupling system by differentials
DK45165C (en) Combined Coupling Device for Electric Amplifiers.
FR673322A (en) Clutch system
ES100270A1 (en) Improvements in amplifier systems.
ES100277A2 (en) Improvements in amplifier systems.
CA284228A (en) Oscillation amplifying system
FR655820A (en) Improvements to sound amplification devices
CA282707A (en) Amplification system