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GB483744A - Improvements in or relating to thermionic valve amplifying circuits - Google Patents

Improvements in or relating to thermionic valve amplifying circuits

Info

Publication number
GB483744A
GB483744A GB29331/36A GB2933136A GB483744A GB 483744 A GB483744 A GB 483744A GB 29331/36 A GB29331/36 A GB 29331/36A GB 2933136 A GB2933136 A GB 2933136A GB 483744 A GB483744 A GB 483744A
Authority
GB
United Kingdom
Prior art keywords
cathode
capacity
grid
circuit
amplifying
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
GB29331/36A
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 GB29331/36A priority Critical patent/GB483744A/en
Priority to US170140A priority patent/US2240715A/en
Publication of GB483744A publication Critical patent/GB483744A/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
    • H03F1/08—Modifications of amplifiers to reduce detrimental influences of internal impedances of amplifying elements
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03F—AMPLIFIERS
    • H03F3/00—Amplifiers with only discharge tubes or only semiconductor devices as amplifying elements
    • H03F3/50—Amplifiers in which input is applied to, or output is derived from, an impedance common to input and output circuits of the amplifying element, e.g. cathode follower
    • H03F3/52—Amplifiers in which input is applied to, or output is derived from, an impedance common to input and output circuits of the amplifying element, e.g. cathode follower with tubes only

Landscapes

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

Abstract

483,744. Valve amplifying circuits. PERCIVAL, W. S. Oct. 28, 1936. No. 29331. [Class 40(v)] In an amplifier having tuned input and output circuits with the output circuit in the cathode lead instability due to the grid-cathode capacity is prevented by adding a parallel inductance so that a. circuit is formed resonant at the same frequency as the input and output circuits. The Figure shows cathode coupled cascade amplifying valves 16, 17 in which stability is ensured by tuning the grid-cathode capacity to the signal frequency by inductance 27. As shown a resistance shunted auto-tra,nsformer 18 is employed. In a modification, Fig. 2 (not the auto-transformer primary is included directly in the cathode circuit of the first amplifying valves. The amplifying valve may be a triode or as shown of the screen-grid type with the screen decoupled to the cathode. The output may be from an impedance in the anode circuit in which case the anode-grid capacity is similarly tuned by the addition of a parallel inductance. The intur-electuode capacity tuned may be increased by added capacity. Specifications 448,421 and 483,732 are referred to.
GB29331/36A 1936-10-28 1936-10-28 Improvements in or relating to thermionic valve amplifying circuits Expired GB483744A (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
GB29331/36A GB483744A (en) 1936-10-28 1936-10-28 Improvements in or relating to thermionic valve amplifying circuits
US170140A US2240715A (en) 1936-10-28 1937-10-21 Amplifier

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB29331/36A GB483744A (en) 1936-10-28 1936-10-28 Improvements in or relating to thermionic valve amplifying circuits

Publications (1)

Publication Number Publication Date
GB483744A true GB483744A (en) 1938-04-26

Family

ID=10289851

Family Applications (1)

Application Number Title Priority Date Filing Date
GB29331/36A Expired GB483744A (en) 1936-10-28 1936-10-28 Improvements in or relating to thermionic valve amplifying circuits

Country Status (2)

Country Link
US (1) US2240715A (en)
GB (1) GB483744A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1024566B (en) * 1954-10-11 1958-02-20 Licentia Gmbh Cascade connection for amplifying low frequencies
EP0109350A3 (en) * 1982-11-10 1987-08-26 Mitsubishi Jukogyo Kabushiki Kaisha Nickel-chromium alloy

Families Citing this family (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2732440A (en) * 1956-01-24 newman
US2679556A (en) * 1946-01-08 1954-05-25 Us Navy Cathode follower system
US2550378A (en) * 1946-02-14 1951-04-24 Belmont Radio Corp Wave signal amplifier, including input electrode capacitance neutralizing means
US2624796A (en) * 1946-06-25 1953-01-06 Norman B Saunders Signal transducer with distortion compensating amplifier
US2549761A (en) * 1947-04-30 1951-04-24 Int Standard Electric Corp Low noise intermediate-frequency amplifier
US2794909A (en) * 1952-01-12 1957-06-04 Motorola Inc Cathode follower radio frequency amplifier for radio receiver
US2990452A (en) * 1957-02-08 1961-06-27 Avco Mfg Corp Component-connected temperature-stabilized transistor amplifier circuit
US3590163A (en) * 1969-07-29 1971-06-29 Philips Corp Bootstrapped transistor amplifier circuit with improved undesired signal suppression

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1024566B (en) * 1954-10-11 1958-02-20 Licentia Gmbh Cascade connection for amplifying low frequencies
EP0109350A3 (en) * 1982-11-10 1987-08-26 Mitsubishi Jukogyo Kabushiki Kaisha Nickel-chromium alloy

Also Published As

Publication number Publication date
US2240715A (en) 1941-05-06

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