US1899580A - Signal system - Google Patents

Signal system Download PDF

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Publication number
US1899580A
US1899580A US404722A US40472229A US1899580A US 1899580 A US1899580 A US 1899580A US 404722 A US404722 A US 404722A US 40472229 A US40472229 A US 40472229A US 1899580 A US1899580 A US 1899580A
Authority
US
United States
Prior art keywords
circuit
cathode
anode
discharge device
tuned
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 - Lifetime
Application number
US404722A
Other languages
English (en)
Inventor
Lambert H Lynn
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.)
General Electric Co
Original Assignee
General Electric Co
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 NL31213D priority Critical patent/NL31213C/xx
Priority to NL52539D priority patent/NL52539B/xx
Application filed by General Electric Co filed Critical General Electric Co
Priority to US404722A priority patent/US1899580A/en
Priority to DE1930545614D priority patent/DE545614C/de
Priority to GB33181/30A priority patent/GB352357A/en
Priority to FR39197D priority patent/FR39197E/fr
Application granted granted Critical
Publication of US1899580A publication Critical patent/US1899580A/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03F—AMPLIFIERS
    • H03F3/00—Amplifiers with only discharge tubes or only semiconductor devices as amplifying elements
    • H03F3/26—Push-pull amplifiers; Phase-splitters therefor
    • H03F3/28—Push-pull amplifiers; Phase-splitters therefor with tubes only
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03H—IMPEDANCE NETWORKS, e.g. RESONANT CIRCUITS; RESONATORS
    • H03H7/00—Multiple-port networks comprising only passive electrical elements as network components
    • H03H7/42—Networks for transforming balanced signals into unbalanced signals and vice versa, e.g. baluns

Definitions

  • My invention relates to signal systems and more particularly'to signal systems employing electron discharge devices. 1
  • Afurther object of my invention is to provide means such that when the coupling between amplifiers of the type mentioned comprises a tuned circuit, the tendency'of parasitic oscillations to be set up in the tuned circuit due to unbalanced impedances between the opposite sides of the tuned circuit and the cathode, resulting from inherent impedance of the discharge device, is avoided.
  • charge device 1 is a tuned circuit-4 comprising inductance and a capacitance 6.
  • the cathodes of all of'the discharge devices are maintained at ground potential and are connected to be supplied froma single source of electromotive force, this source comprising cathode heating transformer 7.
  • An intermediate point on the tuned circuit' l is similarly connected to the cathode, as indicated by theground connection-shown thereon.
  • Opposite points on the inductance are connected through coupling condensers 8 and 9 to the grids of the discharge devices, 2 and.
  • oscillations are suppliedthrough input transformer '17 to the grid of I discharge devicel thereby to control the impedance of the discharge device. These ossillations are then excited, or repeated, in the tuned circuit 4, amplifiedby devices 2 and 3 and supplied to any desired outputrcircuit through transformer 13.
  • the output circuits 7 of devices 2 and 3 may of course be tuned to the same frequency ple thereof as desired.
  • circuit as he inherent CQQLC'E anode and cahode and, Illl'iElC-p. is cliectivay L connected bet. een the anode and may be treated though it were 1..
  • the o: pacitance will a er he more fully understood.
  • the uncle sir-able effects 0 16 is inserted Cult 4; Miis condens it just balances the e posite side of the tuned circuitode including the inherent .cli that r then oscillzne freely a frequency and in balanced 1Gl21t1"--1 w 'pect to the cathode.
  • a load circuit connected between said anode v l l lode, a connection between an interpoint on said load clrcuit ans-said and means for maintaining the pocathode, and means connected between one side of said tuned circuit and the cathode to balance the impedance between the opposite side of said tuned circuit and said cathode,
  • V 3 In combinationfla pair of electron dis- .levices connected in push pull relation, an input circuit connected between the grids of said discharge devices, an additional electron discharge device having an anode and a cathode connected respectively to one side and an intermediate point on said circuit, and a grid. 0. connection between the cathodes of all of said discharge devices and the mi d-point on said circuit, and impedance means connected between the ca .hodc and the side of said circuit opposite said anode, said opposite side of said tuned circuit being efr- A lsher means or balancing the through said anode and said cathode for causing the oscillations supplied by said circuit to said push pull electron discharge devices to be balanced with respect to said cathodes.
  • a pair of electron discharge devices connected in push pull relation, an input circuit connected between the grids of said discharge devices, an additional electron discharge device having an anode and a cathode connected respectively to one side and an intermediate point on said input circuit, and a grid, a connection between the cathodes of all of said discharge devices and a mid-point on said input circuit, and a condenser included in the connection between the cathode or" said additional discharge device andthe side of said tuned circuit opposite said anode, said condenser having capacity substantially equal to the effective capacity between the anode and the cathode of the discharge device, and said side of said tuned circuit to which said condenser is connected being effectively disconnected from said grid.
  • an electron discharge device having an anode, and a cathode, an output circuit having opposite sides balanced with respect to ground, a tuned circuit com prising shunt connected inductance and capacity, the sides of said output circuit being connected to opposite points on said tuned circuit, a source of electroinotive force connected between said cathode'and an intermediate point on said inductance, a connection between the midpoint on said capacitance and ground, a connection from one side of the tuned circuit to said anode and a condenser connected between the opposite side of said tuned circuit and ground, said condenser being of such value that the opposite sides of the tuned circuit are balanced with respect to ground and a parasitic path is produced from the cathode to the midpoint of said tuned circuit having impedance equal to the impedance of the opposite correspond- 111g path including the anode of the discharge device.

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  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Amplifiers (AREA)
  • Lasers (AREA)
US404722A 1929-11-04 1929-11-04 Signal system Expired - Lifetime US1899580A (en)

Priority Applications (6)

Application Number Priority Date Filing Date Title
NL31213D NL31213C (es) 1929-11-04
NL52539D NL52539B (es) 1929-11-04
US404722A US1899580A (en) 1929-11-04 1929-11-04 Signal system
DE1930545614D DE545614C (de) 1929-11-04 1930-10-30 Verstaerkerschaltung mit auf eine Vorroehre folgender Gegentaktstufe
GB33181/30A GB352357A (en) 1929-11-04 1930-11-04 Improvements in and relating to high frequency signalling systems
FR39197D FR39197E (fr) 1929-11-04 1930-11-04 Systèmes amplificateurs donnant une amplification uniforme dans un domaine étendu de fréquences

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US404722A US1899580A (en) 1929-11-04 1929-11-04 Signal system

Publications (1)

Publication Number Publication Date
US1899580A true US1899580A (en) 1933-02-28

Family

ID=23600760

Family Applications (1)

Application Number Title Priority Date Filing Date
US404722A Expired - Lifetime US1899580A (en) 1929-11-04 1929-11-04 Signal system

Country Status (5)

Country Link
US (1) US1899580A (es)
DE (1) DE545614C (es)
FR (1) FR39197E (es)
GB (1) GB352357A (es)
NL (2) NL31213C (es)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2806208A (en) * 1951-09-29 1957-09-10 Columbia Broadcasting Syst Inc Vacuum tube voltmeter
US2856522A (en) * 1953-09-16 1958-10-14 Bendix Aviat Corp Phase detector

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2901557A (en) * 1955-02-07 1959-08-25 Bendix Aviat Corp Oscillator and amplifier circuit

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2806208A (en) * 1951-09-29 1957-09-10 Columbia Broadcasting Syst Inc Vacuum tube voltmeter
US2856522A (en) * 1953-09-16 1958-10-14 Bendix Aviat Corp Phase detector

Also Published As

Publication number Publication date
GB352357A (en) 1931-07-09
FR39197E (fr) 1931-10-21
DE545614C (de) 1932-03-03
NL52539B (es)
NL31213C (es)

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