US2497809A - High-frequency discharge tube apparatus - Google Patents

High-frequency discharge tube apparatus Download PDF

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Publication number
US2497809A
US2497809A US666564A US66656446A US2497809A US 2497809 A US2497809 A US 2497809A US 666564 A US666564 A US 666564A US 66656446 A US66656446 A US 66656446A US 2497809 A US2497809 A US 2497809A
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US
United States
Prior art keywords
conductors
anode
tubes
envelope
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 - Lifetime
Application number
US666564A
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English (en)
Inventor
Zaayer David
Dorgelo Eduard Gerardus
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.)
Hartford National Bank and Trust Co
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Hartford National Bank and Trust 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
Application filed by Hartford National Bank and Trust Co filed Critical Hartford National Bank and Trust Co
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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
    • H03F3/20—Power amplifiers, e.g. Class B amplifiers, Class C amplifiers
    • H03F3/22—Power amplifiers, e.g. Class B amplifiers, Class C amplifiers with tubes only
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
    • H01J25/00—Transit-time tubes, e.g. klystrons, travelling-wave tubes, magnetrons
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03B—GENERATION OF OSCILLATIONS, DIRECTLY OR BY FREQUENCY-CHANGING, BY CIRCUITS EMPLOYING ACTIVE ELEMENTS WHICH OPERATE IN A NON-SWITCHING MANNER; GENERATION OF NOISE BY SUCH CIRCUITS
    • H03B5/00—Generation of oscillations using amplifier with regenerative feedback from output to input
    • H03B5/18—Generation of oscillations using amplifier with regenerative feedback from output to input with frequency-determining element comprising distributed inductance and capacitance
    • H03B5/1817—Generation of oscillations using amplifier with regenerative feedback from output to input with frequency-determining element comprising distributed inductance and capacitance the frequency-determining element being a cavity resonator
    • H03B5/1835—Generation of oscillations using amplifier with regenerative feedback from output to input with frequency-determining element comprising distributed inductance and capacitance the frequency-determining element being a cavity resonator the active element in the amplifier being a vacuum tube
    • 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
    • H03F1/08—Modifications of amplifiers to reduce detrimental influences of internal impedances of amplifying elements
    • H03F1/14—Modifications of amplifiers to reduce detrimental influences of internal impedances of amplifying elements by use of neutralising means
    • H03F1/16—Modifications of amplifiers to reduce detrimental influences of internal impedances of amplifying elements by use of neutralising means in discharge-tube amplifiers

Definitions

  • The. invention relates to a circuit-arrangement comprising two discharge tubes whose walls consist of insulating material and each of which comprises an electrode system, inter alia at least an anode, while the. output circuit is formed by an oscillatory circuit consisting of two parallel conductors.
  • the conductors of the oscillatory circuit are given the form of tubes while each conductor encloses the wall of a tube over at least a great proportion of'the entire length of the anode and is capacitatively coupled with the anode in question,
  • the circuit..- arrangement accordingto the invention wherein consequently for high frequencies a direct connectlon between. the anodes and the conductors of the oscillatory circuit which are located 'out-' side the tube and which carry current of high frequency, and the losses attended therewith are avoided, it is possible to utilize small transmitting tubes for the production or amplification of a' comparatively large power;
  • vFig; 1 is a schematic circuit diagram illus-E trating a conventional push-pull oscillatory arrangement.
  • Fig. 2 shows a longitudinal section through apreferred embodiment of an oscillatory device constructed in accordance with the invention.
  • Fig. 3 is a transverse section taken on linev output circuits land 8 are each formed. by an.
  • the conductors IQ. of the oscillatory circuit 8 have the form of tubes while each conductor ii] encloses the envelope 3. of one of the tubes l and 2 over substantially the entire length of the cylindrical anode 6 so that the conductor, is capacitatively coupled with the latter. Owing to this method of. connecting the anode with the parts outside the tube which carry current of high frequency, the usual inconveniences of the sealing-in operation and the, losses attended therewith are avoided. 'The anode direct-current voltage is supplied, via a choke coil l2 and.
  • the wall of the tube is preferably made of quartz since quartz practically causes no losses even at. high temperatures.
  • the conductors 9 of the inputv circuit 7, which consists of two parallel conductors, likewise have the form of tubes while having. se'curedto themtwo plug bushes it which.
  • connection of the conductors 9 with the grids of the tubes I and 2 is established by means of a conductive ring I! which fits around the lower end of the tube and which is conductively connected to the output leads l8 of the grid which are located within the tube.
  • the cathodes of the tubes l and 2, which cathodes are each con nected to two plug pins I9 which fit into the plug bushes I5, are connected in parallel by means of the conductive strips l6.
  • To the mid-points 20 of the strips l6 are connected conductors 21 through the intermediary of which the heating current is supplied to the cathodes.
  • a screening member 22 is preferably provided between those ends of these conductors which are turned towards one another.
  • Figs. 4 and 5 represent a lateral elevation and a plan view respectively of the device according to Figs. 2 and 3, wherein neutralizing condensers I l are visible.
  • the electrodes of the neutralizing condensers are formed by the conductors In which surround the anodes 6 and by plates 23 which are arranged opposite the said conductors and whose distance with respect to the conductors ill and therefore the value of the capacity can be exactly adjusted by means of a micrometer screw 24.
  • conductors 25 By means of conductors 25 the electrodes 23 of the neutralizing condensers are crosswise connected to the grids 5 of the tubes I and 2. Owing to the arrangement of the neutralizing condensers in the manner shown in Figs.
  • each neutralizing condenser H is connected to the anode via the capacity between the tubular conductor [0 and the appurtenant anode, this capacity having so high a value that a variation in the dimensions and in the arrangement of the tube has substantially no influence on the value thereof and therefore on the adjustment of the neutralizing condenser.
  • High-frequency push-pull circuit apparatus comprising two discharge tubes each including an electrode system having at least a cathode and an elongated anode and an insulating enevelope surrounding said electrode system, and a parallel-resonant transmission line output circuit including two tubular conductors disposed in parallel relation, each of said conductors enclosing the envelope of one of said tubes over a major portion of the entire length of said anode whereby each of said conductors is capacitatively connected to the corresponding anode.
  • High-frequency push-pull circuit apparatus comprising two discharge tubes each including an electrode system having at least a cathode and a cylindrical anode and an insulating envelope" surrounding said electrode system, and a parallel-resonant transmission line output circuit including two tubular conductors disposed in parallel relation, each of said conductors enclosing the envelope of one of said tubes over a major portion of the entire length of said cylindrical anode whereby each of said conductors is capacitatively coupled to the corresponding anode.
  • High-frequency push-pull circuit apparatus comprising two discharge tubes each including an electrode system having at least a cathode and a cylindrical anode, a cylindrical insulating envelope surrounding said electrode system in concentric relation with said anode, and an anode terminal externally disposed on one end of said envelope, a parallel-resonant transmission line output circuit including two tubular conductors positioned in parallel relation, each of said conductors enclosing the envelope of one of said tubes over a major portion of the entire length of said cylindrical anode whereby each of said conductors is capacitatively coupled to the corresponding anode, said anode terminal being contained within said tubular conductor, and con-' necting means within each of said conductors for applying a potential to said anode terminal.
  • High-frequency push-pull circuit apparatus comprising two discharge tubes each including an electrode system having at least a cathode and a cylindrical anode, an insulating envelope surrounding said electrode system in concentric relation with said anode, and an anode terminal projecting axially from a seal in one end of said envelope, a parallelresonant transmission line output circuit including two tubular conductors positioned in parallel relation, each of said conductors enclosing the envelope of one of said tubes over a major portion of the entire length of said cylindrical anode whereby each of said conductors is capacitatively coupled to the corresponding anode, said anode terminal being contained within said tubular conductor and connecting means including a radio-frequency choke coil disposed within each of said conductors for applying a potential to said anode terminal.
  • High-frequency push-pull circuit apparatus comprising two discharge tubes each including an electrode system having at least a cathode and a cylindrical anode and a cylindrical quartz envelope surrounding said electrode system, said envelope being concentrically disposed about said anode, and a parallel-resonant transmission line output circuit including two tubular conductorspositioned in parallel relation, each of said conductors enclosing the envelope of one of said tubes over substantially the entire length of said cylindrical anode whereby each of said conductors is capacitatively coupled to the corresponding anode, said quartz envelope acting as a dielectric between the anodes and the respectiv surrounding conductors.
  • High-frequency push-pull circuit apparatus comprising two discharge tubes each including an electrode system having at least a cathode, a grid and an elongated anode and an insulating envelope surrounding said electrode system, a
  • parallel-resonant transmission line output circuit including two tubular conductors positioned in parallel relation, each of said conductors enclos-' ing the envelope of one of said tubes over a major portion of the entire length of said anode whereby each of said conductors is capacitatively coupled to the corresponding anode, and a neutralizing circuit connecting the anodes crosswise to the grids of said two tubes, said neutralizing cir-- cuit including two adjustable electrodes, each electrode being connected to a respective grid and a grid and an elongated anode and an insulatin envelope surrounding said electrode system, a
  • parallel -resonant transmission line output circuit including two tubular conductors positioned in parallel relation, each of said conductors enclosing the envelope of one of said tubes over a major portion of the entire length of said anode whereby each of said conductors is capacitatively coupled to the corresponding anode, and a neutralizing circuit connecting the anodes crosswise to the grids of said two tubes, said neutralizing ,circuit including two arcuate plates each connected to a respective grid and positioned in parallel relation to one of said conductors to form therewith a neutralizing condenser, and means coupled to said plates to simultaneously adjust the spacing of said plates relative to said conductors.
  • High-frequency push-pull circuit apparatus comprising two discharge tubes each including an electrode system having at least a cathode, a grid and a cylindrical anode, a cylindrical insulating envelope surrounding said electrode system in concentric relation with said anode,
  • An oscillatory circuit in accordance with claim 8 furthergincluding a screening member interposed between adjacent ends of said first pair and said second pair of tubular conductors.

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  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Lasers (AREA)
  • Amplifiers (AREA)
  • Microwave Amplifiers (AREA)
US666564A 1942-04-17 1946-05-02 High-frequency discharge tube apparatus Expired - Lifetime US2497809A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
NL623398X 1942-04-17

Publications (1)

Publication Number Publication Date
US2497809A true US2497809A (en) 1950-02-14

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ID=19788498

Family Applications (1)

Application Number Title Priority Date Filing Date
US666564A Expired - Lifetime US2497809A (en) 1942-04-17 1946-05-02 High-frequency discharge tube apparatus

Country Status (4)

Country Link
US (1) US2497809A (en:Method)
DE (1) DE860078C (en:Method)
GB (1) GB623398A (en:Method)
NL (1) NL60520C (en:Method)

Citations (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1930499A (en) * 1927-04-12 1933-10-17 Westinghouse Electric & Mfg Co Oscillation generator
US1979668A (en) * 1930-11-05 1934-11-06 Westinghouse Electric & Mfg Co Electron discharge device
US2042345A (en) * 1930-10-04 1936-05-26 Rca Corp Oscillation generation
US2107387A (en) * 1934-10-04 1938-02-08 American Telephone & Telegraph Vacuum tube with tank circuits
US2171980A (en) * 1937-03-13 1939-09-05 Rca Corp Electron discharge device
US2269613A (en) * 1938-02-11 1942-01-13 Telefunken Gmbh Amplitude modulator
US2278210A (en) * 1940-07-05 1942-03-31 Bell Telephone Labor Inc Electron discharge device
US2391016A (en) * 1941-10-31 1945-12-18 Sperry Gyroscope Co Inc High-frequency tube structure
US2402600A (en) * 1942-01-22 1946-06-25 Standard Telephones Cables Ltd Electron discharge device
US2402612A (en) * 1941-12-24 1946-06-25 Standard Telephones Cables Ltd Electron discharge device

Patent Citations (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1930499A (en) * 1927-04-12 1933-10-17 Westinghouse Electric & Mfg Co Oscillation generator
US2042345A (en) * 1930-10-04 1936-05-26 Rca Corp Oscillation generation
US1979668A (en) * 1930-11-05 1934-11-06 Westinghouse Electric & Mfg Co Electron discharge device
US2107387A (en) * 1934-10-04 1938-02-08 American Telephone & Telegraph Vacuum tube with tank circuits
US2171980A (en) * 1937-03-13 1939-09-05 Rca Corp Electron discharge device
US2269613A (en) * 1938-02-11 1942-01-13 Telefunken Gmbh Amplitude modulator
US2278210A (en) * 1940-07-05 1942-03-31 Bell Telephone Labor Inc Electron discharge device
US2391016A (en) * 1941-10-31 1945-12-18 Sperry Gyroscope Co Inc High-frequency tube structure
US2402612A (en) * 1941-12-24 1946-06-25 Standard Telephones Cables Ltd Electron discharge device
US2402600A (en) * 1942-01-22 1946-06-25 Standard Telephones Cables Ltd Electron discharge device

Also Published As

Publication number Publication date
GB623398A (en) 1949-05-17
NL60520C (en:Method)
DE860078C (de) 1952-12-18

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