GB708299A - High-stability d.c. amplifier circuit arrangement - Google Patents

High-stability d.c. amplifier circuit arrangement

Info

Publication number
GB708299A
GB708299A GB2209951A GB2209951A GB708299A GB 708299 A GB708299 A GB 708299A GB 2209951 A GB2209951 A GB 2209951A GB 2209951 A GB2209951 A GB 2209951A GB 708299 A GB708299 A GB 708299A
Authority
GB
United Kingdom
Prior art keywords
valve
amplifier
stability
amplifier circuit
circuit arrangement
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
GB2209951A
Inventor
Alfred Benjamin Starks-Field
Roger Champion
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.)
Marconis Wireless Telegraph Co Ltd
BAE Systems Electronics Ltd
Original Assignee
Marconis Wireless Telegraph Co Ltd
Marconi Co Ltd
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 Marconis Wireless Telegraph Co Ltd, Marconi Co Ltd filed Critical Marconis Wireless Telegraph Co Ltd
Priority to GB2209951A priority Critical patent/GB708299A/en
Publication of GB708299A publication Critical patent/GB708299A/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
    • H03F3/34—DC amplifiers in which all stages are DC-coupled
    • H03F3/36—DC amplifiers in which all stages are DC-coupled with tubes only

Landscapes

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

Abstract

708,299. Valve amplifying circuits. MARCONIS WIRELESS TELEGRAPH CO., Ltd. May 19, 1952 [Sept. 20, 1951], No. 22099/51. Class 40 (6) In a D.C. amplifier comprising a balanced pair of valves VI, 2 with a common cathode resistance CR12, D.C. coupled to a succeeding two-stage amplifier V3, 4, the D.C. to be amplified being applied to one valve V1 of the balanced pair and feedback being applied to the other valve V2 from the cathode circuit of the output valve V4, the cathode of the first valve V3 of the two-stage amplifier is connected to the tapping point of a potentiometer comprising resistances R10, 11 connected across the H.T. supply. In this way the amplifier, which can be adjusted by adjustment of the feedback between valves V2, 4 to be insensitive to change in heater voltage, is also rendered insensitive to changes in the H.T. potential.
GB2209951A 1951-09-20 1951-09-20 High-stability d.c. amplifier circuit arrangement Expired GB708299A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB2209951A GB708299A (en) 1951-09-20 1951-09-20 High-stability d.c. amplifier circuit arrangement

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB2209951A GB708299A (en) 1951-09-20 1951-09-20 High-stability d.c. amplifier circuit arrangement

Publications (1)

Publication Number Publication Date
GB708299A true GB708299A (en) 1954-05-05

Family

ID=10173884

Family Applications (1)

Application Number Title Priority Date Filing Date
GB2209951A Expired GB708299A (en) 1951-09-20 1951-09-20 High-stability d.c. amplifier circuit arrangement

Country Status (1)

Country Link
GB (1) GB708299A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3378780A (en) * 1964-10-07 1968-04-16 Westinghouse Electric Corp Transistor amplifier

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3378780A (en) * 1964-10-07 1968-04-16 Westinghouse Electric Corp Transistor amplifier

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