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GB194459A - An attachment to low frequency amplifiers for wireless telegraphy or telephony - Google Patents

An attachment to low frequency amplifiers for wireless telegraphy or telephony

Info

Publication number
GB194459A
GB194459A GB75022A GB75022A GB194459A GB 194459 A GB194459 A GB 194459A GB 75022 A GB75022 A GB 75022A GB 75022 A GB75022 A GB 75022A GB 194459 A GB194459 A GB 194459A
Authority
GB
United Kingdom
Prior art keywords
frequency
attachment
telephony
low frequency
low
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
GB75022A
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.)
PAUL GUSTAVUS ADOLPHUS HELMUTH
Original Assignee
PAUL GUSTAVUS ADOLPHUS HELMUTH
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 PAUL GUSTAVUS ADOLPHUS HELMUTH filed Critical PAUL GUSTAVUS ADOLPHUS HELMUTH
Priority to GB75022A priority Critical patent/GB194459A/en
Publication of GB194459A publication Critical patent/GB194459A/en
Expired legal-status Critical Current

Links

Classifications

    • 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)
  • Power Engineering (AREA)
  • Input Circuits Of Receivers And Coupling Of Receivers And Audio Equipment (AREA)
  • Circuits Of Receivers In General (AREA)
  • Amplifiers (AREA)

Abstract

194,459. Voigt, P. G. A. H. Jan. 10, 1922. Thermionic amplifiers and detectors.-Relates to circuit arrangements which permit of simultaneous high and low frequency amplification, and consists in an attachment for back-coupling a low-frequency valve to a high-frequency amplifier. High-frequency oscillations are passed through an aperiodic coupling d, c to a detector valve f, and the rectified low-frequency impulses are led back through a connection to the grid of the high-frequency valve v, for re-amplification. Condensers g are inserted as shown to by-pass high-frequency currents.
GB75022A 1922-01-10 1922-01-10 An attachment to low frequency amplifiers for wireless telegraphy or telephony Expired GB194459A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB75022A GB194459A (en) 1922-01-10 1922-01-10 An attachment to low frequency amplifiers for wireless telegraphy or telephony

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB75022A GB194459A (en) 1922-01-10 1922-01-10 An attachment to low frequency amplifiers for wireless telegraphy or telephony

Publications (1)

Publication Number Publication Date
GB194459A true GB194459A (en) 1923-03-15

Family

ID=9709861

Family Applications (1)

Application Number Title Priority Date Filing Date
GB75022A Expired GB194459A (en) 1922-01-10 1922-01-10 An attachment to low frequency amplifiers for wireless telegraphy or telephony

Country Status (1)

Country Link
GB (1) GB194459A (en)

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