GB245839A - Improvements in wireless telephone receiving systems - Google Patents

Improvements in wireless telephone receiving systems

Info

Publication number
GB245839A
GB245839A GB24381/24A GB2438124A GB245839A GB 245839 A GB245839 A GB 245839A GB 24381/24 A GB24381/24 A GB 24381/24A GB 2438124 A GB2438124 A GB 2438124A GB 245839 A GB245839 A GB 245839A
Authority
GB
United Kingdom
Prior art keywords
transformer
wireless telephone
compensate
employed
receiving systems
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
GB24381/24A
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.)
Individual
Original Assignee
Individual
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 Individual filed Critical Individual
Priority to GB24381/24A priority Critical patent/GB245839A/en
Priority to FR607013D priority patent/FR607013A/en
Priority to US62471A priority patent/US1735150A/en
Publication of GB245839A publication Critical patent/GB245839A/en
Expired legal-status Critical Current

Links

Classifications

    • 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
    • H03F1/38—Positive-feedback circuit arrangements without negative feedback
    • H03F1/40—Positive-feedback circuit arrangements without negative feedback in discharge-tube amplifiers
    • 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
    • H03F1/42—Modifications of amplifiers to extend the bandwidth
    • H03F1/48—Modifications of amplifiers to extend the bandwidth of aperiodic amplifiers
    • H03F1/50—Modifications of amplifiers to extend the bandwidth of aperiodic amplifiers with tubes only

Landscapes

  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Amplifiers (AREA)

Abstract

245,839. Willans, P. W. Oct. 14, 1924. Amplifying systems, thermionic, are provided with reaction between the input and output circuits to compensate for the distortion of an inductive intervalve audio frequency coupling device. The reactive coupling 8 may consist of a condenser to reduce the effect of the self-capacity of the transformer, or an inductance to increase the effective inductance of the transformer, or a resistance may be employed to increase the inphase component of amplification. A combination may be used and an impedance 13 is included in the grid circuit in series with the input. A reaction transformer 11, 12 may be employed to compensate for the magnetic leakage in the transformer.
GB24381/24A 1924-10-14 1924-10-14 Improvements in wireless telephone receiving systems Expired GB245839A (en)

Priority Applications (3)

Application Number Priority Date Filing Date Title
GB24381/24A GB245839A (en) 1924-10-14 1924-10-14 Improvements in wireless telephone receiving systems
FR607013D FR607013A (en) 1924-10-14 1925-10-14 Improvements to coupling modes in telephone amplifiers and the like
US62471A US1735150A (en) 1924-10-14 1925-10-14 Wireless-telephone receiving system

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB24381/24A GB245839A (en) 1924-10-14 1924-10-14 Improvements in wireless telephone receiving systems

Publications (1)

Publication Number Publication Date
GB245839A true GB245839A (en) 1926-01-14

Family

ID=10210838

Family Applications (1)

Application Number Title Priority Date Filing Date
GB24381/24A Expired GB245839A (en) 1924-10-14 1924-10-14 Improvements in wireless telephone receiving systems

Country Status (3)

Country Link
US (1) US1735150A (en)
FR (1) FR607013A (en)
GB (1) GB245839A (en)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE947622C (en) * 1953-05-08 1956-08-23 Telefunken Gmbh Arrangement to prevent self-excitation in negative amplifiers with output transformers
US3065429A (en) * 1958-04-25 1962-11-20 Lorain Prod Corp Direct current to alternating current converter

Also Published As

Publication number Publication date
US1735150A (en) 1929-11-12
FR607013A (en) 1926-06-24

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