NL68241C - - Google Patents

Info

Publication number
NL68241C
NL68241C NL68241DA NL68241C NL 68241 C NL68241 C NL 68241C NL 68241D A NL68241D A NL 68241DA NL 68241 C NL68241 C NL 68241C
Authority
NL
Netherlands
Application number
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.)
Publication of NL68241C publication Critical patent/NL68241C/xx

Links

Classifications

    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04BTRANSMISSION
    • H04B1/00Details 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
    • H04B1/06Receivers
    • H04B1/16Circuits
    • H04B1/1607Supply circuits
    • H04B1/1623Supply circuits using tubes
    • HELECTRICITY
    • H03ELECTRONIC CIRCUITRY
    • H03FAMPLIFIERS
    • H03F1/00Details of amplifiers with only discharge tubes, only semiconductor devices or only unspecified devices as amplifying elements
    • H03F1/34Negative-feedback-circuit arrangements with or without positive feedback
    • H03F1/36Negative-feedback-circuit arrangements with or without positive feedback in discharge-tube amplifiers
    • HELECTRICITY
    • H03ELECTRONIC CIRCUITRY
    • H03GCONTROL OF AMPLIFICATION
    • H03G3/00Gain control in amplifiers or frequency changers
    • H03G3/02Manually-operated control
    • H03G3/04Manually-operated control in untuned amplifiers
    • H03G3/06Manually-operated control in untuned amplifiers having discharge tubes
    • H03G3/08Manually-operated control in untuned amplifiers having discharge tubes incorporating negative feedback
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04RLOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
    • H04R25/00Deaf-aid sets, i.e. electro-acoustic or electro-mechanical hearing aids; Electric tinnitus maskers providing an auditory perception

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Power Engineering (AREA)
  • Amplifiers (AREA)
  • Emergency Protection Circuit Devices (AREA)
NL68241D 1940-12-24 NL68241C (en:Method)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US371498A US2342822A (en) 1940-12-24 1940-12-24 Amplifying system

Publications (1)

Publication Number Publication Date
NL68241C true NL68241C (en:Method)

Family

ID=23464205

Family Applications (1)

Application Number Title Priority Date Filing Date
NL68241D NL68241C (en:Method) 1940-12-24

Country Status (5)

Country Link
US (1) US2342822A (en:Method)
BE (1) BE471331A (en:Method)
FR (1) FR942174A (en:Method)
GB (1) GB552331A (en:Method)
NL (1) NL68241C (en:Method)

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2481533A (en) * 1944-06-06 1949-09-13 Rca Corp Audio amplifier circuits for radio transmitters
US2710721A (en) * 1945-11-27 1955-06-14 Amasa S Bishop Electronic dividing circuit
US2541811A (en) * 1947-10-10 1951-02-13 Joseph W Crownover Hearing aid amplifier
US2761918A (en) * 1952-11-19 1956-09-04 Dictograph Products Co Inc Amplifier with gain control and power control
US8085954B2 (en) 2005-07-21 2011-12-27 Freescale Semiconductor, Inc. Microphone amplification arrangement and integrated circuit therefor

Also Published As

Publication number Publication date
US2342822A (en) 1944-02-29
GB552331A (en) 1943-04-01
BE471331A (en:Method)
FR942174A (fr) 1949-02-01

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