BE471331A - - Google Patents

Info

Publication number
BE471331A
BE471331A BE471331DA BE471331A BE 471331 A BE471331 A BE 471331A BE 471331D A BE471331D A BE 471331DA BE 471331 A BE471331 A BE 471331A
Authority
BE
Belgium
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 BE471331A publication Critical patent/BE471331A/xx

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
    • H04B1/1607—Supply circuits
    • H04B1/1623—Supply circuits using tubes
    • 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
    • H03F1/34—Negative-feedback-circuit arrangements with or without positive feedback
    • H03F1/36—Negative-feedback-circuit arrangements with or without positive feedback in discharge-tube amplifiers
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03G—CONTROL OF AMPLIFICATION
    • H03G3/00—Gain control in amplifiers or frequency changers without distortion of the input signal
    • H03G3/02—Manually-operated control
    • H03G3/04—Manually-operated control in untuned amplifiers
    • H03G3/06—Manually-operated control in untuned amplifiers having discharge tubes
    • H03G3/08—Manually-operated control in untuned amplifiers having discharge tubes incorporating negative feedback
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
    • H04R25/00—Deaf-aid sets, i.e. electro-acoustic or electro-mechanical hearing aids; Electric tinnitus maskers providing an auditory perception
BE471331D 1940-12-24 BE471331A (xx)

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
BE471331A true BE471331A (xx)

Family

ID=23464205

Family Applications (1)

Application Number Title Priority Date Filing Date
BE471331D BE471331A (xx) 1940-12-24

Country Status (5)

Country Link
US (1) US2342822A (xx)
BE (1) BE471331A (xx)
FR (1) FR942174A (xx)
GB (1) GB552331A (xx)
NL (1) NL68241C (xx)

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
WO2007009483A1 (en) * 2005-07-21 2007-01-25 Freescale Semiconductor, Inc. Microphone amplification arrangement and integrated circuit therefor

Also Published As

Publication number Publication date
FR942174A (fr) 1949-02-01
GB552331A (en) 1943-04-01
NL68241C (xx)
US2342822A (en) 1944-02-29

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