GB542469A - Improvements in or relating to tuned amplifier circuit arrangements - Google Patents

Improvements in or relating to tuned amplifier circuit arrangements

Info

Publication number
GB542469A
GB542469A GB1002840A GB1002840A GB542469A GB 542469 A GB542469 A GB 542469A GB 1002840 A GB1002840 A GB 1002840A GB 1002840 A GB1002840 A GB 1002840A GB 542469 A GB542469 A GB 542469A
Authority
GB
United Kingdom
Prior art keywords
resistance
relating
feedback
amplifier circuit
gain
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
GB1002840A
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 GB1002840A priority Critical patent/GB542469A/en
Publication of GB542469A publication Critical patent/GB542469A/en
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03G—CONTROL OF AMPLIFICATION
    • H03G5/00—Tone control or bandwidth control in amplifiers
    • H03G5/16—Automatic control
    • H03G5/24—Automatic control in frequency-selective amplifiers
    • H03G5/26—Automatic control in frequency-selective amplifiers having discharge tubes

Landscapes

  • Amplifiers (AREA)

Abstract

542,469. Valve amplifying circuits. WHITE, E. L. C., and BULL, E. W. June 8, 1940, No. 10028. [Class 40 (v)] Selectivity is varied while the gain is maintained constant by an amplifier including a tuned circuit, by the provision of negative feedback to counteract the increased sensitivity due to positive feedback. The Figure shows an arrangement in which a variable resistance R2 in the cathode lead produces the feedback and by choice of the tapping b and series resistance R3 in conjunction with the effective shunt resistance R1 of the tuned circuit the gain may be held substantially constant. The Provisional Specification describes the use of a variable-mu valve in the circuit when the bias is varied and the resistance R2 is of fixed value.
GB1002840A 1940-06-08 1940-06-08 Improvements in or relating to tuned amplifier circuit arrangements Expired GB542469A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB1002840A GB542469A (en) 1940-06-08 1940-06-08 Improvements in or relating to tuned amplifier circuit arrangements

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB1002840A GB542469A (en) 1940-06-08 1940-06-08 Improvements in or relating to tuned amplifier circuit arrangements

Publications (1)

Publication Number Publication Date
GB542469A true GB542469A (en) 1942-01-12

Family

ID=9960120

Family Applications (1)

Application Number Title Priority Date Filing Date
GB1002840A Expired GB542469A (en) 1940-06-08 1940-06-08 Improvements in or relating to tuned amplifier circuit arrangements

Country Status (1)

Country Link
GB (1) GB542469A (en)

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