GB407278A - Improvements in or relating to automatically controlled low frequency thermionic amplifiers - Google Patents

Improvements in or relating to automatically controlled low frequency thermionic amplifiers

Info

Publication number
GB407278A
GB407278A GB2931533A GB2931533A GB407278A GB 407278 A GB407278 A GB 407278A GB 2931533 A GB2931533 A GB 2931533A GB 2931533 A GB2931533 A GB 2931533A GB 407278 A GB407278 A GB 407278A
Authority
GB
United Kingdom
Prior art keywords
relating
low frequency
automatically controlled
valve
controlled low
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
GB2931533A
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.)
CROMWELL SOUTHAMPTON Ltd
HUGH ALLAN BROOKE
Original Assignee
CROMWELL SOUTHAMPTON Ltd
HUGH ALLAN BROOKE
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 CROMWELL SOUTHAMPTON Ltd, HUGH ALLAN BROOKE filed Critical CROMWELL SOUTHAMPTON Ltd
Priority to GB2931533A priority Critical patent/GB407278A/en
Publication of GB407278A publication Critical patent/GB407278A/en
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03G—CONTROL OF AMPLIFICATION
    • H03G7/00—Volume compression or expansion in amplifiers
    • H03G7/02—Volume compression or expansion in amplifiers having discharge tubes

Landscapes

  • Amplifiers (AREA)
  • Networks Using Active Elements (AREA)

Abstract

407,278. Valve amplifying circuits. CROMWELL (SOUTHAMPTON), Ltd., and BROOKE, H. A., 32, Brinton's Terrace, Southampton. Oct. 23, 1933, No. 29315. [Class 40 (v).] The gain of a low-frequency amplifying pentode V1 is regulated by rectifying energy from a secondary winding t2 of the output transformer in a valve V2 and applying a variable portion of the rectified D.C. potential developed across a potentiometer P, to the grid circuit of the valve V1 through a resistancecapacity filter R1-R4, C1-C4, the timeconstant of said filter being not more than one fiftieth of a second.
GB2931533A 1933-10-23 1933-10-23 Improvements in or relating to automatically controlled low frequency thermionic amplifiers Expired GB407278A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB2931533A GB407278A (en) 1933-10-23 1933-10-23 Improvements in or relating to automatically controlled low frequency thermionic amplifiers

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB2931533A GB407278A (en) 1933-10-23 1933-10-23 Improvements in or relating to automatically controlled low frequency thermionic amplifiers

Publications (1)

Publication Number Publication Date
GB407278A true GB407278A (en) 1934-03-15

Family

ID=10289590

Family Applications (1)

Application Number Title Priority Date Filing Date
GB2931533A Expired GB407278A (en) 1933-10-23 1933-10-23 Improvements in or relating to automatically controlled low frequency thermionic amplifiers

Country Status (1)

Country Link
GB (1) GB407278A (en)

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