GB520073A - Improvements in and relating to thermionic amplifiers - Google Patents

Improvements in and relating to thermionic amplifiers

Info

Publication number
GB520073A
GB520073A GB1952438A GB1952438A GB520073A GB 520073 A GB520073 A GB 520073A GB 1952438 A GB1952438 A GB 1952438A GB 1952438 A GB1952438 A GB 1952438A GB 520073 A GB520073 A GB 520073A
Authority
GB
United Kingdom
Prior art keywords
valve
adjustment
output
amplifier
relating
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
GB1952438A
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 GB1952438A priority Critical patent/GB520073A/en
Publication of GB520073A publication Critical patent/GB520073A/en
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03G—CONTROL OF AMPLIFICATION
    • H03G3/00—Gain control in amplifiers or frequency changers
    • H03G3/20—Automatic control
    • H03G3/22—Automatic control in amplifiers having discharge tubes

Landscapes

  • Amplifiers (AREA)

Abstract

520,073. Valve amplifying circuits. LAWS, C. A., and ROBIN. H. K. July 1, 1938, No. 19524. [Class 40 (v)] The output of a thermionic amplifier is controlled by adjusting a remote variable impedance to vary the amount of negative feedback, the adjustment may control simultaneously two negative feedback paths. As shown the control comprises resistance R5 which is arranged in the cathode path of valve V2 and in a potentiometer C6, R10, R5 across the output of valve V3. so that adjustment of R5 controls two feedback paths and a range of gain of 40 dB is provided. The feedback path may be given a variable frequency transmission characteristic by incorporating appropriate impedances such as L1. The resistance R5 is arranged at a distance from the amplifier. Specifications 472,256 and 505,492 are referred to. Reference has been directed by the Comptroller to Specification 495,620.
GB1952438A 1938-07-01 1938-07-01 Improvements in and relating to thermionic amplifiers Expired GB520073A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB1952438A GB520073A (en) 1938-07-01 1938-07-01 Improvements in and relating to thermionic amplifiers

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB1952438A GB520073A (en) 1938-07-01 1938-07-01 Improvements in and relating to thermionic amplifiers

Publications (1)

Publication Number Publication Date
GB520073A true GB520073A (en) 1940-04-15

Family

ID=10130829

Family Applications (1)

Application Number Title Priority Date Filing Date
GB1952438A Expired GB520073A (en) 1938-07-01 1938-07-01 Improvements in and relating to thermionic amplifiers

Country Status (1)

Country Link
GB (1) GB520073A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE941296C (en) * 1950-07-28 1956-04-05 Int Standard Electric Corp Amplifier for electrical oscillations with negative feedback

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE941296C (en) * 1950-07-28 1956-04-05 Int Standard Electric Corp Amplifier for electrical oscillations with negative feedback

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