GB683319A - Improvements in or relating to thermionic valve amplifiers - Google Patents

Improvements in or relating to thermionic valve amplifiers

Info

Publication number
GB683319A
GB683319A GB1553050A GB1553050A GB683319A GB 683319 A GB683319 A GB 683319A GB 1553050 A GB1553050 A GB 1553050A GB 1553050 A GB1553050 A GB 1553050A GB 683319 A GB683319 A GB 683319A
Authority
GB
United Kingdom
Prior art keywords
valve
input
impedance
positive
output
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
GB1553050A
Inventor
Victor James Cooper
Norman Neville Parker Smith
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.)
BAE Systems Electronics Ltd
Original Assignee
Marconis Wireless Telegraph Co 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 Marconis Wireless Telegraph Co Ltd filed Critical Marconis Wireless Telegraph Co Ltd
Priority to GB1553050A priority Critical patent/GB683319A/en
Publication of GB683319A publication Critical patent/GB683319A/en
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03F—AMPLIFIERS
    • H03F3/00—Amplifiers with only discharge tubes or only semiconductor devices as amplifying elements
    • H03F3/50—Amplifiers in which input is applied to, or output is derived from, an impedance common to input and output circuits of the amplifying element, e.g. cathode follower
    • H03F3/52—Amplifiers in which input is applied to, or output is derived from, an impedance common to input and output circuits of the amplifying element, e.g. cathode follower with tubes only

Abstract

683,319. Valve amplifying circuits. MARCONI'S WIRELESS TELEGRAPH CO., Ltd. Feb. 28, 1951 [June 21, 1960], No. 15530/50. Class 40 (vi). In an amplifier in which the input is applied to the cathode of a first valve and the output is derived from the anode a second valve is connected having its input in parallel with the first valve and its output feeding the grid of the first valve so that the amplifier may exhibit an infinite positive or negative input impedance and a zero, positive, or negative output impedance. The Figure shows an amplifier in which the input is applied across the cathode impedance Zc in parallel to the valves 1, 11, the voltage produced across the anode load R of valve 11 being applied directly to the control grid of valve 1 from whose anode circuit the output voltage is derived. It is shown that by adjusting the values of the circuit constants the input impedance may be made infinite in either a positive or negative sense and the output impedance either zero, positive or negative.
GB1553050A 1950-06-21 1950-06-21 Improvements in or relating to thermionic valve amplifiers Expired GB683319A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB1553050A GB683319A (en) 1950-06-21 1950-06-21 Improvements in or relating to thermionic valve amplifiers

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB1553050A GB683319A (en) 1950-06-21 1950-06-21 Improvements in or relating to thermionic valve amplifiers

Publications (1)

Publication Number Publication Date
GB683319A true GB683319A (en) 1952-11-26

Family

ID=10060760

Family Applications (1)

Application Number Title Priority Date Filing Date
GB1553050A Expired GB683319A (en) 1950-06-21 1950-06-21 Improvements in or relating to thermionic valve amplifiers

Country Status (1)

Country Link
GB (1) GB683319A (en)

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