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FR1273401A - Appareil de radiophonie portatif à transistors - Google Patents

Appareil de radiophonie portatif à transistors

Info

Publication number
FR1273401A
FR1273401A FR836889A FR836889A FR1273401A FR 1273401 A FR1273401 A FR 1273401A FR 836889 A FR836889 A FR 836889A FR 836889 A FR836889 A FR 836889A FR 1273401 A FR1273401 A FR 1273401A
Authority
FR
France
Prior art keywords
radio device
transistor radio
portable
portable transistor
transistor
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
FR836889A
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.)
Charbonnages de France CDF
Original Assignee
Charbonnages de France CDF
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 Charbonnages de France CDF filed Critical Charbonnages de France CDF
Priority to FR836889A priority Critical patent/FR1273401A/fr
Priority to US129772A priority patent/US3132300A/en
Priority to GB28825/61A priority patent/GB930038A/en
Priority to BE607525A priority patent/BE607525A/fr
Application granted granted Critical
Publication of FR1273401A publication Critical patent/FR1273401A/fr
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03C—MODULATION
    • H03C1/00—Amplitude modulation
    • H03C1/36—Amplitude modulation by means of semiconductor device having at least three electrodes
    • 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
    • H04B1/38—Transceivers, i.e. devices in which transmitter and receiver form a structural unit and in which at least one part is used for functions of transmitting and receiving
    • H04B1/40—Circuits
    • H04B1/44—Transmit/receive switching
    • H04B1/48—Transmit/receive switching in circuits for connecting transmitter and receiver to a common transmission path, e.g. by energy of transmitter

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Amplifiers (AREA)
  • Transmitters (AREA)
FR836889A 1960-08-26 1960-08-26 Appareil de radiophonie portatif à transistors Expired FR1273401A (fr)

Priority Applications (4)

Application Number Priority Date Filing Date Title
FR836889A FR1273401A (fr) 1960-08-26 1960-08-26 Appareil de radiophonie portatif à transistors
US129772A US3132300A (en) 1960-08-26 1961-08-07 Portable transistorized transceiver apparatus
GB28825/61A GB930038A (en) 1960-08-26 1961-08-09 Improvements in or relating to combined transmitting and receiving apparatus
BE607525A BE607525A (fr) 1960-08-26 1961-08-25 Appareil de radiophonie portatif à transistors.

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR836889A FR1273401A (fr) 1960-08-26 1960-08-26 Appareil de radiophonie portatif à transistors

Publications (1)

Publication Number Publication Date
FR1273401A true FR1273401A (fr) 1961-10-13

Family

ID=8738046

Family Applications (1)

Application Number Title Priority Date Filing Date
FR836889A Expired FR1273401A (fr) 1960-08-26 1960-08-26 Appareil de radiophonie portatif à transistors

Country Status (4)

Country Link
US (1) US3132300A (fr)
BE (1) BE607525A (fr)
FR (1) FR1273401A (fr)
GB (1) GB930038A (fr)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3306990A (en) * 1964-01-13 1967-02-28 Motorola Inc Microphone and speaker structure for miniature receiver and transmitter
US3443035A (en) * 1965-05-21 1969-05-06 Pioneer Mortgage & Investment Wireless extension telephone

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2935606A (en) * 1957-02-08 1960-05-03 Avco Mfg Corp Transistorized portable communication set
FR1228174A (fr) * 1959-03-04 1960-08-26 Charbonnages De France émetteur-récepteur portatif à transistors

Also Published As

Publication number Publication date
US3132300A (en) 1964-05-05
GB930038A (en) 1963-07-03
BE607525A (fr) 1962-02-26

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