GB460673A - Improvements in and relating to thermionic valve amplifiers - Google Patents

Improvements in and relating to thermionic valve amplifiers

Info

Publication number
GB460673A
GB460673A GB2667835A GB2667835A GB460673A GB 460673 A GB460673 A GB 460673A GB 2667835 A GB2667835 A GB 2667835A GB 2667835 A GB2667835 A GB 2667835A GB 460673 A GB460673 A GB 460673A
Authority
GB
United Kingdom
Prior art keywords
grid
voltage
valve
anode
cathode
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
GB2667835A
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.)
THORNTON HOWARD BRIDGEWATER
Original Assignee
THORNTON HOWARD BRIDGEWATER
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 THORNTON HOWARD BRIDGEWATER filed Critical THORNTON HOWARD BRIDGEWATER
Priority to GB2667835A priority Critical patent/GB460673A/en
Publication of GB460673A publication Critical patent/GB460673A/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
    • H03F3/02—Amplifiers with only discharge tubes or only semiconductor devices as amplifying elements with tubes only

Landscapes

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

Abstract

460,673. Valve amplifying circuits. BRIDGEWATER, T. H. Sept. 26, 1935, No. 26678. [Class 40 (v)] A tetrode valve amplifier for television signals &c. has an impedance connected in its screengrid circuit so designed in relation to the valve and its operating voltages that the output or anode voltage is substantially in phase with the input voltage. The input voltage 6 is applied between the control grid and the cathode, and the output is taken from terminals 11, 4 between anode and cathode. The screen-grid is connected to the high tension positive terminal 3 by a resistance 12, and to the cathode through a large condenser 13 in series with resistances 14, 15. The screen-grid voltage swings in phase opposition to the control-grid voltage, and predominates in its effect on the anode current, causing the anode voltage to vary in phase with the control grid. By reducing the resistance 15 or by shorting it by. a switch 16, the valve operates in the normal manner as a screen-grid amplifier. The amplifier may thus be used for giving " positive " or " negative " pictures in a television system.
GB2667835A 1935-09-26 1935-09-26 Improvements in and relating to thermionic valve amplifiers Expired GB460673A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB2667835A GB460673A (en) 1935-09-26 1935-09-26 Improvements in and relating to thermionic valve amplifiers

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB2667835A GB460673A (en) 1935-09-26 1935-09-26 Improvements in and relating to thermionic valve amplifiers

Publications (1)

Publication Number Publication Date
GB460673A true GB460673A (en) 1937-02-02

Family

ID=10247458

Family Applications (1)

Application Number Title Priority Date Filing Date
GB2667835A Expired GB460673A (en) 1935-09-26 1935-09-26 Improvements in and relating to thermionic valve amplifiers

Country Status (1)

Country Link
GB (1) GB460673A (en)

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