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FR82171E - Radio receiver with transistors and headphones - Google Patents

Radio receiver with transistors and headphones

Info

Publication number
FR82171E
FR82171E FR907045A FR907045A FR82171E FR 82171 E FR82171 E FR 82171E FR 907045 A FR907045 A FR 907045A FR 907045 A FR907045 A FR 907045A FR 82171 E FR82171 E FR 82171E
Authority
FR
France
Prior art keywords
headphones
transistors
radio receiver
receiver
radio
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
FR907045A
Other languages
French (fr)
Inventor
Jacques De Robien
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.)
Radiotechnique SA
Original Assignee
Radiotechnique SA
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
Priority to BE622641D priority Critical patent/BE622641A/xx
Priority to FR873856A priority patent/FR1308034A/en
Application filed by Radiotechnique SA filed Critical Radiotechnique SA
Priority to FR907045A priority patent/FR82171E/en
Priority to CH1102562A priority patent/CH396101A/en
Priority to GB35490/62A priority patent/GB949748A/en
Priority to DEN22124A priority patent/DE1158118B/en
Application granted granted Critical
Publication of FR82171E publication Critical patent/FR82171E/en
Priority to OA50830A priority patent/OA048E/xx
Priority to OA51143A priority patent/OA01044A/en
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
    • H04B1/16—Circuits
    • 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
    • H03F1/02—Modifications of amplifiers to raise the efficiency, e.g. gliding Class A stages, use of an auxiliary oscillation
    • H03F1/0205—Modifications of amplifiers to raise the efficiency, e.g. gliding Class A stages, use of an auxiliary oscillation in transistor amplifiers
    • H03F1/0211—Modifications of amplifiers to raise the efficiency, e.g. gliding Class A stages, use of an auxiliary oscillation in transistor amplifiers with control of the supply voltage or current
    • H03F1/0244—Stepped control
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03F—AMPLIFIERS
    • H03F3/00—Amplifiers with only discharge tubes or only semiconductor devices as amplifying elements
    • H03F3/181—Low-frequency amplifiers, e.g. audio preamplifiers
    • H03F3/183—Low-frequency amplifiers, e.g. audio preamplifiers with semiconductor devices only

Landscapes

  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Multimedia (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Amplifiers (AREA)
  • Input Circuits Of Receivers And Coupling Of Receivers And Audio Equipment (AREA)
FR907045A 1961-09-21 1962-08-16 Radio receiver with transistors and headphones Expired FR82171E (en)

Priority Applications (8)

Application Number Priority Date Filing Date Title
BE622641D BE622641A (en) 1961-09-21
FR873856A FR1308034A (en) 1961-09-21 1961-09-21 Radio receiver with transistors and headphones
FR907045A FR82171E (en) 1961-09-21 1962-08-16 Radio receiver with transistors and headphones
CH1102562A CH396101A (en) 1961-09-21 1962-09-18 Transistor amplifier device with handset
GB35490/62A GB949748A (en) 1961-09-21 1962-09-18 Improvements in or relating to transistor amplifier devices equipped with an ear phone and a loudspeaker
DEN22124A DE1158118B (en) 1961-09-21 1962-09-18 Transistor amplifier device with listener
OA50830A OA048E (en) 1961-09-21 1964-12-12
OA51143A OA01044A (en) 1961-09-21 1964-12-30 Radio receiver with transitors and headphones.

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR873856A FR1308034A (en) 1961-09-21 1961-09-21 Radio receiver with transistors and headphones
FR907045A FR82171E (en) 1961-09-21 1962-08-16 Radio receiver with transistors and headphones

Publications (1)

Publication Number Publication Date
FR82171E true FR82171E (en) 1964-01-04

Family

ID=26192391

Family Applications (2)

Application Number Title Priority Date Filing Date
FR873856A Expired FR1308034A (en) 1961-09-21 1961-09-21 Radio receiver with transistors and headphones
FR907045A Expired FR82171E (en) 1961-09-21 1962-08-16 Radio receiver with transistors and headphones

Family Applications Before (1)

Application Number Title Priority Date Filing Date
FR873856A Expired FR1308034A (en) 1961-09-21 1961-09-21 Radio receiver with transistors and headphones

Country Status (6)

Country Link
BE (1) BE622641A (en)
CH (1) CH396101A (en)
DE (1) DE1158118B (en)
FR (2) FR1308034A (en)
GB (1) GB949748A (en)
OA (2) OA048E (en)

Also Published As

Publication number Publication date
OA01044A (en) 1968-08-07
DE1158118B (en) 1963-11-28
FR1308034A (en) 1962-11-03
GB949748A (en) 1964-02-19
OA048E (en) 1968-08-07
CH396101A (en) 1965-07-31
BE622641A (en)

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