GB524992A - Improvements in or relating to electron discharge circuit arrangements - Google Patents

Improvements in or relating to electron discharge circuit arrangements

Info

Publication number
GB524992A
GB524992A GB1105/39A GB110539A GB524992A GB 524992 A GB524992 A GB 524992A GB 1105/39 A GB1105/39 A GB 1105/39A GB 110539 A GB110539 A GB 110539A GB 524992 A GB524992 A GB 524992A
Authority
GB
United Kingdom
Prior art keywords
impedance
cathode
point
follower
electron discharge
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
GB1105/39A
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 GB1105/39A priority Critical patent/GB524992A/en
Priority to US316525A priority patent/US2271197A/en
Publication of GB524992A publication Critical patent/GB524992A/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
    • H03F1/34—Negative-feedback-circuit arrangements with or without positive feedback
    • H03F1/36—Negative-feedback-circuit arrangements with or without positive feedback in discharge-tube amplifiers

Landscapes

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

Abstract

524,992. Thermionic valve circuits. MARCONI'S WIRELESS TELEGRAPH CO., Ltd., and KEALL, O. E. Jan. 12, 1939, No. 1105. [Class 40 (v)] Voltage feed back is effected between a point P in a chain of electron discharge devices VI ... V3 and a preceding point by means of an electron discharge device CFV which is employed as a cathode follower with respect to, and has a cathode impedance CR common to the cathode impedance of, the device V1 at the point at which voltage feed back is to be effected, the voltage fed back being fed to the input electrode of the follower device CFV. The invention is shown as applied to an oscillator O with multistage amplifier. The impedance CR is preferably an ohmic impedance but may be a reactance. The cathode of the follower device CFV is connected to a point between a self-bias resistance unit BR1 and the impedance CR through a variable resistance VR shunted by a condenser C2, the degree of feed back being controlled by varying the resistance VR. Instead of employing a single device as the cathode follower, a number of devices in parallel, presenting high mutual conductance, may be used.
GB1105/39A 1939-01-12 1939-01-12 Improvements in or relating to electron discharge circuit arrangements Expired GB524992A (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
GB1105/39A GB524992A (en) 1939-01-12 1939-01-12 Improvements in or relating to electron discharge circuit arrangements
US316525A US2271197A (en) 1939-01-12 1940-01-31 Feedback circuit arrangement

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB1105/39A GB524992A (en) 1939-01-12 1939-01-12 Improvements in or relating to electron discharge circuit arrangements

Publications (1)

Publication Number Publication Date
GB524992A true GB524992A (en) 1940-08-20

Family

ID=9716232

Family Applications (1)

Application Number Title Priority Date Filing Date
GB1105/39A Expired GB524992A (en) 1939-01-12 1939-01-12 Improvements in or relating to electron discharge circuit arrangements

Country Status (2)

Country Link
US (1) US2271197A (en)
GB (1) GB524992A (en)

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2466229A (en) * 1944-04-21 1949-04-05 Stromberg Carlson Co Automatic gain control system
US2568533A (en) * 1945-04-17 1951-09-18 Rca Corp Electronic circuit arrangement
US2525698A (en) * 1945-05-11 1950-10-10 Hazeltine Research Inc Compensated voltage regulator
US2605429A (en) * 1950-09-11 1952-07-29 Howard V Herndon Portable radiation survey instrument
US2927165A (en) * 1955-01-25 1960-03-01 Fairstein Edward Non-blocking stabilized feed back amplifier

Also Published As

Publication number Publication date
US2271197A (en) 1942-01-27

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