GB794841A - Improved cathode follower - Google Patents

Improved cathode follower

Info

Publication number
GB794841A
GB794841A GB29088/55A GB2908855A GB794841A GB 794841 A GB794841 A GB 794841A GB 29088/55 A GB29088/55 A GB 29088/55A GB 2908855 A GB2908855 A GB 2908855A GB 794841 A GB794841 A GB 794841A
Authority
GB
United Kingdom
Prior art keywords
cathode
valve
follower
grid
input
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
GB29088/55A
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.)
Texas Instruments Inc
Original Assignee
Texas Instruments Inc
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 Texas Instruments Inc filed Critical Texas Instruments Inc
Publication of GB794841A publication Critical patent/GB794841A/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

Landscapes

  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Amplifiers (AREA)
  • Supply Devices, Intensifiers, Converters, And Telemotors (AREA)

Abstract

794,841. Valve amplifying circuits. TEXAS INSTRUMENTS, Inc. Oct. 12, 1955 5 [Oct. 25, 1954], No. 29088/55. Class 40 (6). In a cathode-follower circuit an auxiliary amplifier is used to reduce the difference between input and output voltages. The output voltage across the cathode resistor 11 of the cathode follower V1 is applied to the grid of one valve V4 of a cathode-coupled pair, while the input voltage is applied to the grid of the second valve V3. An amplified voltage proportional to the difference between input and output is obtained across the load resistor 21 and is applied as a correction voltage to the output, via a further cathode follower V2. The resistances 23, 24 provide for biasing the valve V2; A.C. variations are applied in full to its grid via condenser 26. In a modification, Fig. 4 (not shown), the further cathode follower is placed in series with the anode circuit of the main cathode follower: an additional cathode follower is also inserted between the input and the grid of the second valve in the cathode-coupled pair.
GB29088/55A 1954-10-25 1955-10-12 Improved cathode follower Expired GB794841A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US464335A US2965852A (en) 1954-10-25 1954-10-25 Cathode follower

Publications (1)

Publication Number Publication Date
GB794841A true GB794841A (en) 1958-05-14

Family

ID=23843510

Family Applications (1)

Application Number Title Priority Date Filing Date
GB29088/55A Expired GB794841A (en) 1954-10-25 1955-10-12 Improved cathode follower

Country Status (5)

Country Link
US (1) US2965852A (en)
BE (1) BE542279A (en)
DE (1) DE1015854B (en)
FR (1) FR1143663A (en)
GB (1) GB794841A (en)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
NL237518A (en) * 1958-04-08
USD720613S1 (en) 2013-09-09 2015-01-06 Kraft Foods Group Brands Llc Container

Family Cites Families (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB620140A (en) * 1946-03-20 1949-03-21 British Thomson Houston Co Ltd Improvements relating to d.c. amplifiers
US2730573A (en) * 1948-12-01 1956-01-10 Sperry Gyroscope Co Ltd Feed-back amplifier systems and servo mechanisms that are adapted to respond to input changes at very low frequencies
US2628266A (en) * 1949-01-22 1953-02-10 Rca Corp Analysis of signal transfer devices
US2592193A (en) * 1949-03-03 1952-04-08 Us Sec War Means for reducing amplitude distortion in cathode-follower amplifiers
US2685000A (en) * 1949-04-29 1954-07-27 Rca Corp Stabilized direct current amplifier
GB670801A (en) * 1949-07-06 1952-04-23 Southern Instr Ltd Improvements in or relating to direct coupled thermionic valve amplifiers
US2647174A (en) * 1950-09-23 1953-07-28 Du Mont Allen B Lab Inc Adjustable beam-trace-positioning amplifier
US2714136A (en) * 1951-02-27 1955-07-26 Gen Precision Lab Inc Stabilized direct-coupled amplifier
GB739283A (en) * 1952-03-21 1955-10-26 Wallace Henry Coulter Electronic amplifier having series-connected output tubes
US2737547A (en) * 1952-10-01 1956-03-06 Hughes Aircraft Co Cathode follower circuits
US2896027A (en) * 1953-10-19 1959-07-21 Melpar Inc Reflex amplifiers
US2801296A (en) * 1954-02-09 1957-07-30 Bell Telephone Labor Inc D.-c. summing amplifier drift correction
US2795654A (en) * 1954-03-02 1957-06-11 James R Macdonald High impedance electronic circuit
US2810025A (en) * 1954-07-15 1957-10-15 Hughes Aircraft Co Direct-coupled feedback amplifier

Also Published As

Publication number Publication date
DE1015854B (en) 1957-09-19
US2965852A (en) 1960-12-20
BE542279A (en)
FR1143663A (en) 1957-10-03

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