GB542035A - Improvements in or relating to methods of terminating electrical transmission lines and circuits therefor - Google Patents

Improvements in or relating to methods of terminating electrical transmission lines and circuits therefor

Info

Publication number
GB542035A
GB542035A GB1069740A GB1069740A GB542035A GB 542035 A GB542035 A GB 542035A GB 1069740 A GB1069740 A GB 1069740A GB 1069740 A GB1069740 A GB 1069740A GB 542035 A GB542035 A GB 542035A
Authority
GB
United Kingdom
Prior art keywords
resistances
electrical transmission
impedance
relating
methods
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
GB1069740A
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.)
Baird Television Ltd
Original Assignee
Baird Television 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 Baird Television Ltd filed Critical Baird Television Ltd
Priority to GB1069740A priority Critical patent/GB542035A/en
Publication of GB542035A publication Critical patent/GB542035A/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
    • H03F3/26—Push-pull amplifiers; Phase-splitters therefor
    • H03F3/28—Push-pull amplifiers; Phase-splitters therefor with tubes only

Abstract

542,035. Valve amplifying circuits. BAIRD TELEVISION, Ltd., and McCONNELL, E. D. June 21, 1940, No. 10697. [Class 40 (v)] An electrical transmission line is terminated by a push-pull amplifier so arranged that more than half the signal is fed to each valve and wherein the cathode coupled impedance of the valves is equal to or greater than the characteristic impedance of the line. The Fig. 4 shows an arrangement in which the grids and cathodes are cross connected and the output is taken from load resistances 14, 15. Padding resistances 18A, 19A are connected between each side of the line and earth to reduce the terminating impedance to a desired value. If the valves are triodes the resistances 14, 15 may be used to increase the cathode coupled impedance to the requisite value. Resistances 20, 21 may, in addition, be provided so that the effect of unbalanced input signals and spurious voltages may be balanced out
GB1069740A 1940-06-21 1940-06-21 Improvements in or relating to methods of terminating electrical transmission lines and circuits therefor Expired GB542035A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB1069740A GB542035A (en) 1940-06-21 1940-06-21 Improvements in or relating to methods of terminating electrical transmission lines and circuits therefor

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB1069740A GB542035A (en) 1940-06-21 1940-06-21 Improvements in or relating to methods of terminating electrical transmission lines and circuits therefor

Publications (1)

Publication Number Publication Date
GB542035A true GB542035A (en) 1941-12-23

Family

ID=9972632

Family Applications (1)

Application Number Title Priority Date Filing Date
GB1069740A Expired GB542035A (en) 1940-06-21 1940-06-21 Improvements in or relating to methods of terminating electrical transmission lines and circuits therefor

Country Status (1)

Country Link
GB (1) GB542035A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2509389A (en) * 1945-09-11 1950-05-30 Sun Oil Co Electronic means for suppressing inphase interference
US2768250A (en) * 1951-09-17 1956-10-23 Edward J Stachura Direct coupled amplifier
US3238310A (en) * 1961-02-13 1966-03-01 Rca Corp Bidirectional amplifiers

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2509389A (en) * 1945-09-11 1950-05-30 Sun Oil Co Electronic means for suppressing inphase interference
US2768250A (en) * 1951-09-17 1956-10-23 Edward J Stachura Direct coupled amplifier
US3238310A (en) * 1961-02-13 1966-03-01 Rca Corp Bidirectional amplifiers

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