GB456450A - Improvements in and relating to coupling means for thermionic valve circuits - Google Patents

Improvements in and relating to coupling means for thermionic valve circuits

Info

Publication number
GB456450A
GB456450A GB10394/35A GB1039435A GB456450A GB 456450 A GB456450 A GB 456450A GB 10394/35 A GB10394/35 A GB 10394/35A GB 1039435 A GB1039435 A GB 1039435A GB 456450 A GB456450 A GB 456450A
Authority
GB
United Kingdom
Prior art keywords
valve
impedance
anode
resistance
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
GB10394/35A
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
Priority to FR804804D priority Critical patent/FR804804A/fr
Application filed by Individual filed Critical Individual
Priority to GB10394/35A priority patent/GB456450A/en
Priority to DEE48203D priority patent/DE757339C/en
Priority to US73310A priority patent/US2120823A/en
Publication of GB456450A publication Critical patent/GB456450A/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
    • H03F3/34—DC amplifiers in which all stages are DC-coupled
    • H03F3/36—DC amplifiers in which all stages are DC-coupled with tubes only
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03F—AMPLIFIERS
    • H03F1/00—Details of amplifiers with only discharge tubes, only semiconductor devices or only unspecified devices as amplifying elements
    • H03F1/42—Modifications of amplifiers to extend the bandwidth
    • H03F1/48—Modifications of amplifiers to extend the bandwidth of aperiodic amplifiers
    • H03F1/50—Modifications of amplifiers to extend the bandwidth of aperiodic amplifiers with tubes only

Landscapes

  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Amplifiers (AREA)
  • Microwave Tubes (AREA)

Abstract

456,450. Valve circuits for amplifying. WHITE, E. L. C., 32, The Rise, Hilling- don, Middlesex. April 3, 1935, No. 10394. [Class 40 (v)] In a direct-coupled cascade amplifier for a wide range of frequencies in which the anode load impedance and anode impedance of a first valve can together be represented by a pure resistance R in series with an impedance Z, and in which the first valve is coupled to a second valve through an impedance Z<1> and a leak R<1> is provided between the grid and cathode of the second valve, the relationship Z<1>/Z = R<1>/R is maintained. In the case of a tetrode as shown in Fig. 1 the anode impedance of the first valve can be ignored and R = the coupling resistance R3, Z = R2/1+j#C2R2 , Z<1>=R<1>2/1+j#C<1>2R<1>2 and R<1>=R<1>3. Preferably, the leak resistance R<1>3 is much greater than R3. When the first valve is a triode, the calculations must take into account the effect of the anode impedance as a shunt to the anode load impedance. In a modification, Fig. 5 in which additional de-coupling elements R5, C5 are provided, additional coupling elements R5, C<1>5 are provided also. In all cases the time constants C2R2 and C<1>2 R<1>2 are equal and also C2R3 and C<1>2 R13.
GB10394/35A 1935-04-03 1935-04-03 Improvements in and relating to coupling means for thermionic valve circuits Expired GB456450A (en)

Priority Applications (4)

Application Number Priority Date Filing Date Title
FR804804D FR804804A (en) 1935-04-03
GB10394/35A GB456450A (en) 1935-04-03 1935-04-03 Improvements in and relating to coupling means for thermionic valve circuits
DEE48203D DE757339C (en) 1935-04-03 1936-04-04 Amplifier for the transmission of a wide frequency band including direct current
US73310A US2120823A (en) 1935-04-03 1936-04-08 Coupling means for thermionic valve circuits

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB10394/35A GB456450A (en) 1935-04-03 1935-04-03 Improvements in and relating to coupling means for thermionic valve circuits

Publications (1)

Publication Number Publication Date
GB456450A true GB456450A (en) 1936-11-03

Family

ID=9967010

Family Applications (1)

Application Number Title Priority Date Filing Date
GB10394/35A Expired GB456450A (en) 1935-04-03 1935-04-03 Improvements in and relating to coupling means for thermionic valve circuits

Country Status (4)

Country Link
US (1) US2120823A (en)
DE (1) DE757339C (en)
FR (1) FR804804A (en)
GB (1) GB456450A (en)

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE743491C (en) * 1937-12-24 1943-12-27 Opta Radio Ag Capacitor resistor-coupled amplifier with gain control
US2433378A (en) * 1941-03-21 1947-12-30 Standard Telephones Cables Ltd Electrical oscillation generator
DE846413C (en) * 1939-05-10 1952-08-11 Emi Ltd Coupling circuit for broadband amplifier
DE757339C (en) * 1935-04-03 1953-02-02 Emi Ltd Amplifier for the transmission of a wide frequency band including direct current
US2688078A (en) * 1946-02-21 1954-08-31 Us Navy Multivibrator
DE1126448B (en) * 1958-03-08 1962-03-29 Fernseh Gmbh Circuit arrangement for the transmission of voltages or currents in electronic amplifiers for wide frequency bands, in particular television amplifiers or the like.

Families Citing this family (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2419682A (en) * 1942-02-11 1947-04-29 Jr Victor Guillemin Electrocardiotachometer
US2464252A (en) * 1942-11-28 1949-03-15 James R Moore Pulsed oscillator
US2435331A (en) * 1943-10-04 1948-02-03 Nasa Vacuum tube amplifier
BE464096A (en) * 1944-03-11
US2481870A (en) * 1945-12-14 1949-09-13 L S Brach Mfg Corp Wide band amplifier
US2548436A (en) * 1946-01-25 1951-04-10 Hazeltine Corp Television receiver background control circuit
US2579528A (en) * 1946-03-11 1951-12-25 John E Williams Differential electronic amplifier
US2598326A (en) * 1946-11-20 1952-05-27 Emi Ltd Negative feedback amplifier
US2514023A (en) * 1947-10-10 1950-07-04 Ibm Voltage generator
US2689913A (en) * 1949-01-18 1954-09-21 Du Mont Allen B Lab Inc Means for stabilizing oscillator circuit
US2609446A (en) * 1949-12-31 1952-09-02 Honeywell Regulator Co Electronic frequency eliminating apparatus
US2777905A (en) * 1952-08-28 1957-01-15 Dunford A Kelly Low distortion amplifier

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE632273C (en) * 1933-10-25 1936-07-06 Guenther Krawinkel Dr Ing Amplifier with devices for eliminating interference voltages
US2045316A (en) * 1934-04-28 1936-06-23 Rca Corp Impedance coupled amplifier
FR804804A (en) * 1935-04-03 1936-11-03

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE757339C (en) * 1935-04-03 1953-02-02 Emi Ltd Amplifier for the transmission of a wide frequency band including direct current
DE743491C (en) * 1937-12-24 1943-12-27 Opta Radio Ag Capacitor resistor-coupled amplifier with gain control
DE846413C (en) * 1939-05-10 1952-08-11 Emi Ltd Coupling circuit for broadband amplifier
US2433378A (en) * 1941-03-21 1947-12-30 Standard Telephones Cables Ltd Electrical oscillation generator
US2688078A (en) * 1946-02-21 1954-08-31 Us Navy Multivibrator
DE1126448B (en) * 1958-03-08 1962-03-29 Fernseh Gmbh Circuit arrangement for the transmission of voltages or currents in electronic amplifiers for wide frequency bands, in particular television amplifiers or the like.

Also Published As

Publication number Publication date
FR804804A (en) 1936-11-03
DE757339C (en) 1953-02-02
US2120823A (en) 1938-06-14

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