FR50189E - Receiver of t. s. f. with dial placed in front of the loudspeaker - Google Patents

Receiver of t. s. f. with dial placed in front of the loudspeaker

Info

Publication number
FR50189E
FR50189E FR50189DA FR50189E FR 50189 E FR50189 E FR 50189E FR 50189D A FR50189D A FR 50189DA FR 50189 E FR50189 E FR 50189E
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
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.)
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 granted granted Critical
Publication of FR50189E publication Critical patent/FR50189E/en
Application filed by Telefunken AG, Telefunken Gesellschaft fuer Drahtlose Telegraphie mbH filed Critical Telefunken AG
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; DEAF-AID SETS; 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)
FR50189D 1936-12-05 1939-01-25 Receiver of t. s. f. with dial placed in front of the loudspeaker Expired FR50189E (en)

Applications Claiming Priority (1)

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

Publications (1)

Publication Number Publication Date
FR50189E true FR50189E (en) 1939-01-17

Family

ID=6548225

Family Applications (3)

Application Number Title Priority Date Filing Date
FR830308D Expired FR830308A (en) 1936-12-05 1937-12-03 Receiver of t. s. f. with dial placed in front of the loudspeaker
FR50189D Expired FR50189E (en) 1936-12-05 1939-01-25 Receiver of t. s. f. with dial placed in front of the loudspeaker
FR50260D Expired FR50260E (en) 1936-12-05 1939-03-02 Receiver of t. s. f. with dial placed in front of the loudspeaker

Family Applications Before (1)

Application Number Title Priority Date Filing Date
FR830308D Expired FR830308A (en) 1936-12-05 1937-12-03 Receiver of t. s. f. with dial placed in front of the loudspeaker

Family Applications After (1)

Application Number Title Priority Date Filing Date
FR50260D Expired FR50260E (en) 1936-12-05 1939-03-02 Receiver of t. s. f. with dial placed in front of the loudspeaker

Country Status (2)

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

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0130321A2 (en) * 1983-06-30 1985-01-09 Blaupunkt-Werke GmbH Car receiver

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0130321A2 (en) * 1983-06-30 1985-01-09 Blaupunkt-Werke GmbH Car receiver
EP0130321A3 (en) * 1983-06-30 1986-03-19 Blaupunkt-Werke GmbH Car receiver

Also Published As

Publication number Publication date
FR50260E (en) 1940-01-29
GB512772A (en) 1939-09-25
FR830308A (en) 1938-07-27

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