US2029640A - Audion arrangement for short wave television purposes - Google Patents

Audion arrangement for short wave television purposes Download PDF

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Publication number
US2029640A
US2029640A US735600A US73560034A US2029640A US 2029640 A US2029640 A US 2029640A US 735600 A US735600 A US 735600A US 73560034 A US73560034 A US 73560034A US 2029640 A US2029640 A US 2029640A
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US
United States
Prior art keywords
audion
arrangement
short wave
television purposes
resistances
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
US735600A
Other languages
English (en)
Inventor
Schlesinger Kurt
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 claimed from US717310A external-priority patent/US2068768A/en
Application filed by Individual filed Critical Individual
Application granted granted Critical
Publication of US2029640A publication Critical patent/US2029640A/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N9/00—Investigating density or specific gravity of materials; Analysing materials by determining density or specific gravity
    • G01N9/10—Investigating density or specific gravity of materials; Analysing materials by determining density or specific gravity by observing bodies wholly or partially immersed in fluid materials
    • G01N9/12—Investigating density or specific gravity of materials; Analysing materials by determining density or specific gravity by observing bodies wholly or partially immersed in fluid materials by observing the depth of immersion of the bodies, e.g. hydrometers
    • G01N9/14—Investigating density or specific gravity of materials; Analysing materials by determining density or specific gravity by observing bodies wholly or partially immersed in fluid materials by observing the depth of immersion of the bodies, e.g. hydrometers the body being built into a container
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
    • H01F19/00—Fixed transformers or mutual inductances of the signal type
    • H01F19/04—Transformers or mutual inductances suitable for handling frequencies considerably beyond the audio range
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03D—DEMODULATION OR TRANSFERENCE OF MODULATION FROM ONE CARRIER TO ANOTHER
    • H03D1/00—Demodulation of amplitude-modulated oscillations
    • H03D1/14—Demodulation of amplitude-modulated oscillations by means of non-linear elements having more than two poles
    • H03D1/16—Demodulation of amplitude-modulated oscillations by means of non-linear elements having more than two poles of discharge tubes
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B1/00—Details of transmission systems, not covered by a single one of groups H04B3/00 - H04B13/00; Details of transmission systems not characterised by the medium used for transmission
    • H04B1/06—Receivers
    • H04B1/16—Circuits
    • H04B1/163—Special arrangements for the reduction of the damping of resonant circuits of receivers
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N5/00—Details of television systems
    • H04N5/04—Synchronising
    • H04N5/08—Separation of synchronising signals from picture signals
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N5/00—Details of television systems
    • H04N5/04—Synchronising
    • H04N5/12—Devices in which the synchronising signals are only operative if a phase difference occurs between synchronising and synchronised scanning devices, e.g. flywheel synchronising
    • H04N5/123—Devices in which the synchronising signals are only operative if a phase difference occurs between synchronising and synchronised scanning devices, e.g. flywheel synchronising whereby the synchronisation signal directly commands a frequency generator

Definitions

  • the circuit linked up with the two control grids of the audion is damped to such extent, preferably by the use of resistances as poor in capacity as possible, that the same no longer reveals any kind of oscillatory properties.
  • the secondary coil is so dimensioned that its natural oscillation is in the vicinity of the unmodulated carrier wave.
  • I is the final stage of the intermediate frequency amplifier with the primary coil 2, 3 the secondary coil, which is earthed at the centre and is preferably dimensioned in such fashion that its natural oscillation period is situated in the vicinity of the unmodulated carrier wave (for example approximately metres)
  • 6 and I are the audion condensers, which in accordance with application 717,310 are preferably very small, for example are each selected at approximately 3 cm.
  • 8 and 9 the grid leak resistances, which may have a size of .1 megohm
  • I0 is the audion tube with the cathode IS
  • the two control grids H and I2 which are preferably passed out separately
  • the screening grid l4 and the anode l5, and 4 and 5 are the two damping resistances employed in accordance with the invention for damping the circuit, which are as poor in capacity as possible and may each have a size of 10 ohms.
  • the anode and screening potential grid are supplied by a battery l6 which however may be substituted by a main supply apparatus and which may be separate for each of the valves l and I0.
  • An audion arrangement for grid-detection more particularly in the case of television signals modulated on a carrier frequency comprising a transformer coupled rier frequency amplifier,
  • a carthe secondary of said a multielectrode valve comprising an anode, a cathode,
  • control grids said cathode being connected to earth, two audion condensers, the middle tapping point of said secondary connected to earth, the ends of said secondary connected by way of said condensers to said control grids, two grid resistances each connected between one of said grids and earth and two damping resistances each connected between the one end of said secondary and earth across the two halves of said secondary, said damping resistances being so dimensioned as to prevent oscillatory properties.

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  • Engineering & Computer Science (AREA)
  • Signal Processing (AREA)
  • Power Engineering (AREA)
  • Multimedia (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Health & Medical Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Chemical & Material Sciences (AREA)
  • Analytical Chemistry (AREA)
  • Biochemistry (AREA)
  • General Health & Medical Sciences (AREA)
  • Nonlinear Science (AREA)
  • Immunology (AREA)
  • Pathology (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Channel Selection Circuits, Automatic Tuning Circuits (AREA)
  • Picture Signal Circuits (AREA)
  • Magnetic Resonance Imaging Apparatus (AREA)
  • Burglar Alarm Systems (AREA)
  • Discharge Lamps And Accessories Thereof (AREA)
  • Discharge Lamp (AREA)
  • Television Receiver Circuits (AREA)
  • Plasma Technology (AREA)
  • Amplifiers (AREA)
  • Transmission And Conversion Of Sensor Element Output (AREA)
  • Superheterodyne Receivers (AREA)
US735600A 1933-03-29 1934-07-17 Audion arrangement for short wave television purposes Expired - Lifetime US2029640A (en)

Applications Claiming Priority (7)

Application Number Priority Date Filing Date Title
DE435417X 1933-03-29
DE2029640X 1933-07-19
DER89049D DE681003C (de) 1933-03-29 1933-10-24 Audiongleichrichterschaltung fuer Fernsehempfaenger
US717310A US2068768A (en) 1933-03-29 1934-03-26 Detector for ultra short waves
US74701134A 1934-10-05 1934-10-05
US77416A US2097804A (en) 1933-03-29 1936-05-01 Amplitude filter circuit for television receivers
US80584A US2094678A (en) 1933-03-29 1936-05-19 Detector for ultra short waves

Publications (1)

Publication Number Publication Date
US2029640A true US2029640A (en) 1936-02-04

Family

ID=32512791

Family Applications (5)

Application Number Title Priority Date Filing Date
US735600A Expired - Lifetime US2029640A (en) 1933-03-29 1934-07-17 Audion arrangement for short wave television purposes
US749236A Expired - Lifetime US2118866A (en) 1933-03-29 1934-10-20 Detector
US16430A Expired - Lifetime US2137354A (en) 1933-03-29 1935-04-15 Receiving connection system for televison receivers
US77416A Expired - Lifetime US2097804A (en) 1933-03-29 1936-05-01 Amplitude filter circuit for television receivers
US80584A Expired - Lifetime US2094678A (en) 1933-03-29 1936-05-19 Detector for ultra short waves

Family Applications After (4)

Application Number Title Priority Date Filing Date
US749236A Expired - Lifetime US2118866A (en) 1933-03-29 1934-10-20 Detector
US16430A Expired - Lifetime US2137354A (en) 1933-03-29 1935-04-15 Receiving connection system for televison receivers
US77416A Expired - Lifetime US2097804A (en) 1933-03-29 1936-05-01 Amplitude filter circuit for television receivers
US80584A Expired - Lifetime US2094678A (en) 1933-03-29 1936-05-19 Detector for ultra short waves

Country Status (6)

Country Link
US (5) US2029640A (enrdf_load_stackoverflow)
BE (1) BE405607A (enrdf_load_stackoverflow)
DE (1) DE681003C (enrdf_load_stackoverflow)
FR (7) FR770575A (enrdf_load_stackoverflow)
GB (6) GB435417A (enrdf_load_stackoverflow)
NL (2) NL46052C (enrdf_load_stackoverflow)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2448771A (en) * 1943-09-23 1948-09-07 Du Mont Allen B Lab Inc Cathode-ray oscillograph circuit
US2721951A (en) * 1950-12-29 1955-10-25 Rca Corp Low reactance electron discharge device
US2840749A (en) * 1952-10-17 1958-06-24 Bell Telephone Labor Inc Electron discharge devices
RU2470399C1 (ru) * 2011-05-16 2012-12-20 Сергей Владимирович Аликов Трансформатор

Also Published As

Publication number Publication date
FR770575A (fr) 1934-09-15
GB441285A (en) 1936-01-16
DE681003C (de) 1939-09-13
NL46052C (enrdf_load_stackoverflow)
GB449316A (en) 1936-06-22
GB435417A (en) 1935-09-20
FR45442E (fr) 1935-09-04
BE405607A (enrdf_load_stackoverflow)
US2094678A (en) 1937-10-05
US2097804A (en) 1937-11-02
GB447401A (en) 1936-05-11
FR46091E (fr) 1936-02-15
FR45063E (fr) 1935-05-29
GB452118A (en) 1936-08-17
FR46060E (fr) 1936-02-15
FR45447E (fr) 1935-09-04
US2137354A (en) 1938-11-22
US2118866A (en) 1938-05-31
FR45446E (fr) 1935-09-04
GB446707A (en) 1936-05-05
NL52223C (enrdf_load_stackoverflow)

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