GB368788A - Improvements in thermionic valve amplifying and/or detecting systems - Google Patents

Improvements in thermionic valve amplifying and/or detecting systems

Info

Publication number
GB368788A
GB368788A GB3736730A GB3736730A GB368788A GB 368788 A GB368788 A GB 368788A GB 3736730 A GB3736730 A GB 3736730A GB 3736730 A GB3736730 A GB 3736730A GB 368788 A GB368788 A GB 368788A
Authority
GB
United Kingdom
Prior art keywords
stage
shunted
resistance
grid
potentiometer
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
GB3736730A
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 GB3736730A priority Critical patent/GB368788A/en
Publication of GB368788A publication Critical patent/GB368788A/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
    • H03F1/42—Modifications of amplifiers to extend the bandwidth
    • H03F1/48—Modifications of amplifiers to extend the bandwidth of aperiodic amplifiers
    • H03F1/50—Modifications of amplifiers to extend the bandwidth of aperiodic amplifiers with tubes only

Landscapes

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

Abstract

368,788. Valve amplifying and detecting circuits. MIDGLEY, A. H., Fairfield, Harefield Road, Uxbridge, Middlesex. Dec. 11, 1930, No. 37367. [Class 40 (v).] In order to increase the stage gain of a direct-coupled thermionic amplifier or detector the resistance or impedance connecting the anode of one stage to the grid of the next is shunted by a condenser to byepass all high or audio frequencies. The Figure shows a three-stage low-frequency amplifier in which the anodes of valves T1, T2, T3 are connected to the positive high-tension source H3 through resistances or chokes R1, R2' R3 and also (as regards T1, T2) to the negative terminal H1 through resistances or tapped chokes r1, r2 from which an adjustable connection is made to the grid of the succeeding stage. The portion of the coupling element included in the direct anode-grid connection is shunted by a condenser C1, C2 so as to increase the stage gain. The input terminals A1' A2 are shunted by a resistance K, A2 being connected to the potentiometer P across the high-tension source, through a variable tapping. The common cathode circuits are also tapped on to this potentiometer through a resistance X. Suitable component values are given in the Specification. Specifications 344,096 and 344,936 are referred to.
GB3736730A 1930-12-11 1930-12-11 Improvements in thermionic valve amplifying and/or detecting systems Expired GB368788A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB3736730A GB368788A (en) 1930-12-11 1930-12-11 Improvements in thermionic valve amplifying and/or detecting systems

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB3736730A GB368788A (en) 1930-12-11 1930-12-11 Improvements in thermionic valve amplifying and/or detecting systems

Publications (1)

Publication Number Publication Date
GB368788A true GB368788A (en) 1932-03-11

Family

ID=10395914

Family Applications (1)

Application Number Title Priority Date Filing Date
GB3736730A Expired GB368788A (en) 1930-12-11 1930-12-11 Improvements in thermionic valve amplifying and/or detecting systems

Country Status (1)

Country Link
GB (1) GB368788A (en)

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