GB707450A - Improvements relating to electron discharge tube amplifiers - Google Patents

Improvements relating to electron discharge tube amplifiers

Info

Publication number
GB707450A
GB707450A GB2363450A GB2363450A GB707450A GB 707450 A GB707450 A GB 707450A GB 2363450 A GB2363450 A GB 2363450A GB 2363450 A GB2363450 A GB 2363450A GB 707450 A GB707450 A GB 707450A
Authority
GB
United Kingdom
Prior art keywords
valve
transformer
cathode
anode circuit
discharge tube
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
GB2363450A
Inventor
Godfrey Newbold Hounsfield
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.)
EMI Ltd
Electrical and Musical Industries Ltd
Original Assignee
EMI Ltd
Electrical and Musical Industries Ltd
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 EMI Ltd, Electrical and Musical Industries Ltd filed Critical EMI Ltd
Priority to GB2363450A priority Critical patent/GB707450A/en
Publication of GB707450A publication Critical patent/GB707450A/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 without distortion of the input signal
    • H03G3/02—Manually-operated control
    • H03G3/04—Manually-operated control in untuned amplifiers
    • H03G3/06—Manually-operated control in untuned amplifiers having discharge tubes
    • H03G3/08—Manually-operated control in untuned amplifiers having discharge tubes incorporating negative feedback

Abstract

707,450. Valve amplifying circuits. ELECTRIC & MUSICAL INDUSTRIES, Ltd. Sept. 12, 1951 [Sept. 27, 1950], No. 23634/50. Class 40 (6) In a two-valve amplifier in which negative feedback of adjustable amount is provided by connecting the cathode of the first valve 1 to a variable tap on the output transformer 10, which is fed from the anode circuit of the second valve 2, positive feed back is applied to the transformer by means of a coupling winding 4 connected in the anode circuit of the valve 1. This reduces the damping on the transformer due to the cathode impedance of the valve 1 and also tends to balance out the saturating effect of the cathode current upon the core. In order to improve the response at the higher frequencies, resistances 14, 16 may be connected respectively in series in the anode circuit of the valve 1 and in the grid circuit of the valve 2. and condensers C1, 2 as shown.
GB2363450A 1950-09-27 1950-09-27 Improvements relating to electron discharge tube amplifiers Expired GB707450A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB2363450A GB707450A (en) 1950-09-27 1950-09-27 Improvements relating to electron discharge tube amplifiers

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB2363450A GB707450A (en) 1950-09-27 1950-09-27 Improvements relating to electron discharge tube amplifiers

Publications (1)

Publication Number Publication Date
GB707450A true GB707450A (en) 1954-04-21

Family

ID=10198831

Family Applications (1)

Application Number Title Priority Date Filing Date
GB2363450A Expired GB707450A (en) 1950-09-27 1950-09-27 Improvements relating to electron discharge tube amplifiers

Country Status (1)

Country Link
GB (1) GB707450A (en)

Similar Documents

Publication Publication Date Title
GB677921A (en) Improvements in wide band amplifier coupling circuits
GB700129A (en) Improvements in electric loudspeaker amplifying systems
GB586138A (en) Improvements in or relating to electron discharge valve amplifiers
GB515158A (en) Improvements in and relating to thermionic valve amplifiers
GB707450A (en) Improvements relating to electron discharge tube amplifiers
GB672373A (en) Improvements in or relating to thermionic valve circuit arrangements
US2595444A (en) Amplifier
GB534294A (en) Improvements in thermionic tube amplifiers
GB490347A (en) Improvements in or relating to amplifying systems
GB849316A (en) Improvements in or relating to transistor amplifier circuits
GB489289A (en) Improvements in or relating to thermionic amplifiers
GB629357A (en) Direct coupled thermionic valve amplifier
US1893545A (en) Alternating current amplifier
GB490656A (en) Improvements in broad band amplifiers
GB669662A (en) Improvements in or relating to amplifying circuits embodying thermionic valves
GB567134A (en) Improvements in amplifier circuits employing automatic volume control
GB765634A (en) Improvements in or relating to amplifier circuits
GB643946A (en) Improvements in or relating to circuit-arrangements for amplifying ultra-high-frequency oscillations
GB562655A (en) Improvements in or relating to negative feedback amplifiers
GB472256A (en) Improvements in and relating to thermionic amplifiers
GB684963A (en) Improvements in or relating to thermionic valve circuit arrangements
GB696827A (en) Improvements relating to negative feedback amplifiers
GB393520A (en) Improvements in or relating to thermionic amplifiers
GB412477A (en) Improvements in or relating to electron discharge device amplifiers
GB601848A (en) Improvements in or relating to thermionic valve arrangements for coupling balanced and unbalanced electric circuits