FR830308A - Récepteur de t. s. f. avec cadran disposé devant le haut-parleur - Google Patents

Récepteur de t. s. f. avec cadran disposé devant le haut-parleur

Info

Publication number
FR830308A
FR830308A FR830308DA FR830308A FR 830308 A FR830308 A FR 830308A FR 830308D A FR830308D A FR 830308DA FR 830308 A FR830308 A FR 830308A
Authority
FR
France
Prior art keywords
loudspeaker
receiver
dial placed
dial
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.)
Telefunken AG
Original Assignee
Telefunken AG
Telefunken Gesellschaft fuer Drahtlose Telegraphie mbH
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 Telefunken AG, Telefunken Gesellschaft fuer Drahtlose Telegraphie mbH filed Critical Telefunken AG
Application granted granted Critical
Publication of FR830308A publication Critical patent/FR830308A/fr
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B1/00—Details of transmission systems, not covered by a single one of groups H04B3/00 - H04B13/00; Details of transmission systems not characterised by the medium used for transmission
    • H04B1/06—Receivers
    • H04B1/08—Constructional details, e.g. cabinet
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03J—TUNING RESONANT CIRCUITS; SELECTING RESONANT CIRCUITS
    • H03J1/00—Details of adjusting, driving, indicating, or mechanical control arrangements for resonant circuits in general
    • H03J1/02—Indicating arrangements
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03J—TUNING RESONANT CIRCUITS; SELECTING RESONANT CIRCUITS
    • H03J1/00—Details of adjusting, driving, indicating, or mechanical control arrangements for resonant circuits in general
    • H03J1/02—Indicating arrangements
    • H03J1/04—Indicating arrangements with optical indicating means
    • H03J1/044—Illumination of the tuning dial; On and off switching of the illumination; Circuits related with illumination
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; ELECTRIC HEARING AIDS; PUBLIC ADDRESS SYSTEMS
    • H04R1/00—Details of transducers, loudspeakers or microphones
    • H04R1/20—Arrangements for obtaining desired frequency or directional characteristics
    • H04R1/32—Arrangements for obtaining desired frequency or directional characteristics for obtaining desired directional characteristic only
    • H04R1/34—Arrangements for obtaining desired frequency or directional characteristics for obtaining desired directional characteristic only by using a single transducer with sound reflecting, diffracting, directing or guiding means
    • H04R1/345—Arrangements for obtaining desired frequency or directional characteristics for obtaining desired directional characteristic only by using a single transducer with sound reflecting, diffracting, directing or guiding means for loudspeakers

Landscapes

  • Engineering & Computer Science (AREA)
  • Signal Processing (AREA)
  • Health & Medical Sciences (AREA)
  • Otolaryngology (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Physics & Mathematics (AREA)
  • Acoustics & Sound (AREA)
  • Obtaining Desirable Characteristics In Audible-Bandwidth Transducers (AREA)
FR830308D 1936-12-05 1937-12-03 Récepteur de t. s. f. avec cadran disposé devant le haut-parleur Expired FR830308A (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE512772X 1936-12-05

Publications (1)

Publication Number Publication Date
FR830308A true FR830308A (fr) 1938-07-27

Family

ID=6548225

Family Applications (3)

Application Number Title Priority Date Filing Date
FR830308D Expired FR830308A (fr) 1936-12-05 1937-12-03 Récepteur de t. s. f. avec cadran disposé devant le haut-parleur
FR50189D Expired FR50189E (fr) 1936-12-05 1939-01-25 Récepteur de t. s. f. avec cadran disposé devant le haut-parleur
FR50260D Expired FR50260E (fr) 1936-12-05 1939-03-02 Récepteur de t. s. f. avec cadran disposé devant le haut-parleur

Family Applications After (2)

Application Number Title Priority Date Filing Date
FR50189D Expired FR50189E (fr) 1936-12-05 1939-01-25 Récepteur de t. s. f. avec cadran disposé devant le haut-parleur
FR50260D Expired FR50260E (fr) 1936-12-05 1939-03-02 Récepteur de t. s. f. avec cadran disposé devant le haut-parleur

Country Status (2)

Country Link
FR (3) FR830308A (fr)
GB (1) GB512772A (fr)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3323524A1 (de) * 1983-06-30 1985-01-10 Blaupunkt-Werke Gmbh, 3200 Hildesheim Autoempfaenger

Also Published As

Publication number Publication date
GB512772A (en) 1939-09-25
FR50189E (fr) 1939-01-17
FR50260E (fr) 1940-01-29

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