BE467997A - - Google Patents

Info

Publication number
BE467997A
BE467997A BE467997DA BE467997A BE 467997 A BE467997 A BE 467997A BE 467997D A BE467997D A BE 467997DA BE 467997 A BE467997 A BE 467997A
Authority
BE
Belgium
Application number
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.)
Publication of BE467997A publication Critical patent/BE467997A/xx

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
    • H03G5/08—Manually-operated control in untuned amplifiers having discharge tubes incorporating negative feedback
    • 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
    • H03F1/34—Negative-feedback-circuit arrangements with or without positive feedback
    • H03F1/36—Negative-feedback-circuit arrangements with or without positive feedback in discharge-tube amplifiers
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03F—AMPLIFIERS
    • H03F3/00—Amplifiers with only discharge tubes or only semiconductor devices as amplifying elements
    • H03F3/20—Power amplifiers, e.g. Class B amplifiers, Class C amplifiers
    • H03F3/22—Power amplifiers, e.g. Class B amplifiers, Class C amplifiers with tubes only
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
    • H04R3/00—Circuits for transducers, loudspeakers or microphones
    • H04R3/12—Circuits for transducers, loudspeakers or microphones for distributing signals to two or more loudspeakers
    • H04R3/14—Cross-over networks
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
    • H04R5/00—Stereophonic arrangements
    • H04R5/04—Circuit arrangements, e.g. for selective connection of amplifier inputs/outputs to loudspeakers, for loudspeaker detection, or for adaptation of settings to personal preferences or hearing impairments

Landscapes

  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Physics & Mathematics (AREA)
  • Acoustics & Sound (AREA)
  • Signal Processing (AREA)
  • Health & Medical Sciences (AREA)
  • General Health & Medical Sciences (AREA)
  • Otolaryngology (AREA)
  • Amplifiers (AREA)
BE467997D 1945-08-03 BE467997A (fi)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
NL254963X 1945-08-03

Publications (1)

Publication Number Publication Date
BE467997A true BE467997A (fi)

Family

ID=19781259

Family Applications (1)

Application Number Title Priority Date Filing Date
BE467997D BE467997A (fi) 1945-08-03

Country Status (5)

Country Link
US (1) US2452499A (fi)
BE (1) BE467997A (fi)
CH (1) CH254963A (fi)
FR (1) FR936806A (fi)
GB (1) GB618789A (fi)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1012643B (de) * 1955-05-23 1957-07-25 Loewe Opta Ag Niederfrequenzverstaerker-Anordnung mit mehreren Lautsprechern oder Lautsprechergruppen
US3067390A (en) * 1959-10-07 1962-12-04 Optimation Inc Low level frequency dividing network
GB1028383A (en) * 1963-10-29 1966-05-04 Rank Bush Murphy Ltd Amplifier for feeding a reactive load
USRE31228E (en) * 1967-12-04 1983-05-03 Bose Corporation Loudspeaker system

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB215104A (en) * 1923-02-05 1924-05-05 Henry Joseph Round Improved means for reproducing sound
US1711529A (en) * 1923-05-14 1929-05-07 Signal Ges Mit Beschraenkter H Multiple-range sound-transmitting system
FR613417A (fi) * 1925-03-31 1926-11-17
US1698269A (en) * 1926-10-29 1929-01-08 Konheim Harvey Method of reproducing electrical oscillations and apparatus therefor
US1760821A (en) * 1927-10-19 1930-05-27 Leon F Douglass Amplifying and reproducing system

Also Published As

Publication number Publication date
US2452499A (en) 1948-10-26
CH254963A (fr) 1948-05-31
FR936806A (fr) 1948-07-30
GB618789A (en) 1949-02-28

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