FR2315741A1 - Enceinte acoustique a amplificateur incorpore - Google Patents

Enceinte acoustique a amplificateur incorpore

Info

Publication number
FR2315741A1
FR2315741A1 FR7519584A FR7519584A FR2315741A1 FR 2315741 A1 FR2315741 A1 FR 2315741A1 FR 7519584 A FR7519584 A FR 7519584A FR 7519584 A FR7519584 A FR 7519584A FR 2315741 A1 FR2315741 A1 FR 2315741A1
Authority
FR
France
Prior art keywords
heat sink
power transistors
exploit
stimulated
ventilation
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.)
Granted
Application number
FR7519584A
Other languages
English (en)
French (fr)
Other versions
FR2315741B1 (enExample
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.)
Individual
Original Assignee
Individual
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 Individual filed Critical Individual
Priority to FR7519584A priority Critical patent/FR2315741A1/fr
Publication of FR2315741A1 publication Critical patent/FR2315741A1/fr
Application granted granted Critical
Publication of FR2315741B1 publication Critical patent/FR2315741B1/fr
Granted legal-status Critical Current

Links

Classifications

    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04RLOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
    • H04R1/00Details of transducers, loudspeakers or microphones
    • H04R1/02Casings; Cabinets ; Supports therefor; Mountings therein
    • H04R1/021Casings; Cabinets ; Supports therefor; Mountings therein incorporating only one transducer

Landscapes

  • Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Acoustics & Sound (AREA)
  • Signal Processing (AREA)
  • Details Of Audible-Bandwidth Transducers (AREA)
FR7519584A 1975-06-23 1975-06-23 Enceinte acoustique a amplificateur incorpore Granted FR2315741A1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
FR7519584A FR2315741A1 (fr) 1975-06-23 1975-06-23 Enceinte acoustique a amplificateur incorpore

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR7519584A FR2315741A1 (fr) 1975-06-23 1975-06-23 Enceinte acoustique a amplificateur incorpore

Publications (2)

Publication Number Publication Date
FR2315741A1 true FR2315741A1 (fr) 1977-01-21
FR2315741B1 FR2315741B1 (enExample) 1978-02-24

Family

ID=9156872

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7519584A Granted FR2315741A1 (fr) 1975-06-23 1975-06-23 Enceinte acoustique a amplificateur incorpore

Country Status (1)

Country Link
FR (1) FR2315741A1 (enExample)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2469850A1 (fr) * 1979-11-08 1981-05-22 Berton Vincent Enceintes acoustiques et techniques associees

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2070977A (en) * 1935-06-04 1937-02-16 Magnavox Co Sound reproducer
GB848431A (en) * 1957-12-13 1960-09-14 Tannoy Ltd Improvements relating to loudspeakers
US3310131A (en) * 1964-01-30 1967-03-21 Emi Ltd Reinforcing cap for moving coil loudspeakers
US3778551A (en) * 1969-01-17 1973-12-11 Chicago Musical Instr Co Air cooled audio amplifier assembly

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2070977A (en) * 1935-06-04 1937-02-16 Magnavox Co Sound reproducer
GB848431A (en) * 1957-12-13 1960-09-14 Tannoy Ltd Improvements relating to loudspeakers
US3310131A (en) * 1964-01-30 1967-03-21 Emi Ltd Reinforcing cap for moving coil loudspeakers
US3778551A (en) * 1969-01-17 1973-12-11 Chicago Musical Instr Co Air cooled audio amplifier assembly

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2469850A1 (fr) * 1979-11-08 1981-05-22 Berton Vincent Enceintes acoustiques et techniques associees

Also Published As

Publication number Publication date
FR2315741B1 (enExample) 1978-02-24

Similar Documents

Publication Publication Date Title
WO1979000302A1 (fr) Dispositif semi-conducteur
GB1309508A (en) Mounting of integrated circuits
FR2315741A1 (fr) Enceinte acoustique a amplificateur incorpore
GB1147810A (en) Loud speaker assembly
GB1021230A (en) Improvements relating to transistor amplifiers
GB1457213A (en) Electron multipliers
FR2423944A1 (fr) Enceinte acoustique a amplificateur incorpore et a events thermoacoustiques
GB1111887A (en) Hearing aid circuit module
NL161631C (nl) Vermogensversterkerschakeling met transistoren.
JPS53121613A (en) Magnetic circuit of speaker
JPS5252670A (en) Electronic watch construction
GB1134317A (en) Electric guitar
FR2336853A1 (fr) Platine d'interconnexions, en particulier pour boite de demarrage de turbodiesel
JPS5248951A (en) Bias circuit
JPS5360577A (en) Semiconductor device
JPS548507A (en) Miniature tape recorder
JPS5644230A (en) Urgency information receiving device
JPS52139347A (en) Push-pull output circuit
JPS5234314A (en) Door open/shut device
ES181436U (es) Modulo de panel posterior para amplificadores de sonido.
GB1045768A (en) Apparatus using transistors
JPS5427761A (en) Bias circuit of transistor amplifier
JPS5361253A (en) Circuit for driving ab and b class transistor power amplifier
JPS538548A (en) Current amplifier circuit
UL'IANOV Effect of feedback on the noise figure of amplifiers(SNR improvement by negative feedback and deterioration by positive feedback in amplifiers, discussing input circuit thermal noise)

Legal Events

Date Code Title Description
ST Notification of lapse