NL55929B - - Google Patents

Info

Publication number
NL55929B
NL55929B NL55929DB NL55929B NL 55929 B NL55929 B NL 55929B NL 55929D B NL55929D B NL 55929DB NL 55929 B NL55929 B NL 55929B
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 NL55929B publication Critical patent/NL55929B/xx

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
    • H04R3/00—Circuits for transducers, loudspeakers or microphones
    • H04R3/002—Damping circuit arrangements for transducers, e.g. motional feedback circuits
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03F—AMPLIFIERS
    • H03F3/00—Amplifiers with only discharge tubes or only semiconductor devices as amplifying elements
    • H03F3/02—Amplifiers with only discharge tubes or only semiconductor devices as amplifying elements with tubes only

Landscapes

  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Acoustics & Sound (AREA)
  • Signal Processing (AREA)
  • Power Engineering (AREA)
  • Tone Control, Compression And Expansion, Limiting Amplitude (AREA)
NL55929D 1930-03-10 NL55929B (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB746266X 1930-03-10

Publications (1)

Publication Number Publication Date
NL55929B true NL55929B (en)

Family

ID=10496029

Family Applications (1)

Application Number Title Priority Date Filing Date
NL55929D NL55929B (en) 1930-03-10

Country Status (2)

Country Link
DE (1) DE746266C (en)
NL (1) NL55929B (en)

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE290109C (en) *
DE448473C (en) * 1927-08-19 Hugo Heberlein Device for recording tones
GB129670A (en) * 1917-06-08 1919-07-24 Reginald Aubrey Fessenden Improvement in Methods and Apparatus for Eliminating Undesired Vibrations of Particular Frequencies.
FR499309A (en) * 1917-06-08 1920-02-07 Submarine Signal Co Improvements in methods and apparatus for eliminating parasitic vibrations
GB160223A (en) * 1919-11-18 1921-03-18 Adrian Francis Sykes Improvements in telephonic and like apparatus
GB215104A (en) * 1923-02-05 1924-05-05 Henry Joseph Round Improved means for reproducing sound
DE465588C (en) * 1924-01-01 1928-09-25 Electrical Res Prod Inc Arrangement for recording or reproducing vibrations, sound vibrations or the like.
DE451662C (en) * 1925-03-31 1927-11-03 Walter Hahnemann Device for recording and reproducing sound vibrations and converting them into electrical currents and vice versa

Also Published As

Publication number Publication date
DE746266C (en) 1944-06-15

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