FR974291A - Châssis d'amplificateur à tubes électroniques - Google Patents

Châssis d'amplificateur à tubes électroniques

Info

Publication number
FR974291A
FR974291A FR974291DA FR974291A FR 974291 A FR974291 A FR 974291A FR 974291D A FR974291D A FR 974291DA FR 974291 A FR974291 A FR 974291A
Authority
FR
France
Prior art keywords
tube amplifier
electronic tube
amplifier chassis
chassis
electronic
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
English (en)
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.)
Beltone Hearing Aid Co
Original Assignee
Beltone Hearing Aid Co
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 Beltone Hearing Aid Co filed Critical Beltone Hearing Aid Co
Application granted granted Critical
Publication of FR974291A publication Critical patent/FR974291A/fr
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
    • H05K7/00—Constructional details common to different types of electric apparatus
    • H05K7/02—Arrangements of circuit components or wiring on supporting structure
    • H05K7/04—Arrangements of circuit components or wiring on supporting structure on conductive chassis
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
    • H04R25/00—Deaf-aid sets, i.e. electro-acoustic or electro-mechanical hearing aids; Electric tinnitus maskers providing an auditory perception
    • H04R25/04—Deaf-aid sets, i.e. electro-acoustic or electro-mechanical hearing aids; Electric tinnitus maskers providing an auditory perception comprising pocket amplifiers
    • H—ELECTRICITY
    • H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
    • H05K1/00—Printed circuits
    • H05K1/02—Details
    • H05K1/0271—Arrangements for reducing stress or warp in rigid printed circuit boards, e.g. caused by loads, vibrations or differences in thermal expansion
    • H—ELECTRICITY
    • H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
    • H05K1/00—Printed circuits
    • H05K1/18—Printed circuits structurally associated with non-printed electric components
    • H—ELECTRICITY
    • H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
    • H05K2201/00—Indexing scheme relating to printed circuits covered by H05K1/00
    • H05K2201/20—Details of printed circuits not provided for in H05K2201/01 - H05K2201/10
    • H05K2201/2009—Reinforced areas, e.g. for a specific part of a flexible printed circuit
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10S439/00—Electrical connectors
    • Y10S439/909—Medical use or attached to human body

Landscapes

  • Engineering & Computer Science (AREA)
  • Microelectronics & Electronic Packaging (AREA)
  • Health & Medical Sciences (AREA)
  • General Health & Medical Sciences (AREA)
  • Neurosurgery (AREA)
  • Otolaryngology (AREA)
  • Physics & Mathematics (AREA)
  • Acoustics & Sound (AREA)
  • Signal Processing (AREA)
  • Connection Of Batteries Or Terminals (AREA)
  • Casings For Electric Apparatus (AREA)
  • Mounting Of Printed Circuit Boards And The Like (AREA)
FR974291D 1947-11-24 1948-10-25 Châssis d'amplificateur à tubes électroniques Expired FR974291A (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US787714A US2495546A (en) 1947-11-24 1947-11-24 Hearing aid chassis

Publications (1)

Publication Number Publication Date
FR974291A true FR974291A (fr) 1951-02-20

Family

ID=25142338

Family Applications (1)

Application Number Title Priority Date Filing Date
FR974291D Expired FR974291A (fr) 1947-11-24 1948-10-25 Châssis d'amplificateur à tubes électroniques

Country Status (6)

Country Link
US (1) US2495546A (fr)
BE (1) BE485721A (fr)
DE (1) DE804444C (fr)
FR (1) FR974291A (fr)
GB (1) GB650867A (fr)
NL (1) NL71916C (fr)

Families Citing this family (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2899608A (en) * 1959-08-11 Multiple element printed circuit component
US2761018A (en) * 1949-03-02 1956-08-28 Paravox Inc Hearing aid having a molded chassis
US2650267A (en) * 1949-08-26 1953-08-25 Maico Company Inc Hearing aid construction
US2692305A (en) * 1950-06-26 1954-10-19 Microtone Company Inc Hearing and unit
US2902630A (en) * 1956-05-03 1959-09-01 Jr Vincent M Heazel Hermetically sealed package for electronic component
US2959645A (en) * 1956-05-22 1960-11-08 Ladd John Hearing aid
US3011379A (en) * 1957-02-05 1961-12-05 Baldwin Piano Co Electronic musical instrument with photoelectric switching
US3710194A (en) * 1971-02-11 1973-01-09 Westinghouse Electric Corp Concealed adjustable element for electronic circuit cards
JPS5683096A (en) * 1979-12-10 1981-07-07 Sony Corp Hybrid integrated circuit and method of manufacturing same
DE3245030A1 (de) * 1982-12-06 1984-06-07 Siemens AG, 1000 Berlin und 8000 München Kleinhoergeraet

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1688976A (en) * 1924-06-21 1928-10-23 Western Electric Co Audiphone
US1804676A (en) * 1925-03-05 1931-05-12 Columbia Phono Graph Company I Radio apparatus
US2441960A (en) * 1943-02-02 1948-05-25 Eisler Paul Manufacture of electric circuit components
US2444302A (en) * 1943-03-16 1948-06-29 E A Myers & Sons Hearing aid
US2453192A (en) * 1944-09-08 1948-11-09 Bell Telephone Labor Inc Moisture impervious vent

Also Published As

Publication number Publication date
NL71916C (fr)
GB650867A (fr)
BE485721A (fr)
DE804444C (de) 1951-04-23
US2495546A (en) 1950-01-24

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