US2029640A - Audion arrangement for short wave television purposes - Google Patents
Audion arrangement for short wave television purposes Download PDFInfo
- 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
- Authority
- 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
Links
Images
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.
Landscapes
- Engineering & Computer Science (AREA)
- Multimedia (AREA)
- Signal Processing (AREA)
- Power Engineering (AREA)
- Physics & Mathematics (AREA)
- Pathology (AREA)
- Chemical & Material Sciences (AREA)
- Analytical Chemistry (AREA)
- Biochemistry (AREA)
- General Health & Medical Sciences (AREA)
- General Physics & Mathematics (AREA)
- Immunology (AREA)
- Life Sciences & Earth Sciences (AREA)
- Nonlinear Science (AREA)
- Health & Medical Sciences (AREA)
- Computer Networks & Wireless Communication (AREA)
- Picture Signal Circuits (AREA)
- Channel Selection Circuits, Automatic Tuning Circuits (AREA)
- Magnetic Resonance Imaging Apparatus (AREA)
- Superheterodyne Receivers (AREA)
- Transmission And Conversion Of Sensor Element Output (AREA)
- Discharge Lamps And Accessories Thereof (AREA)
- Plasma Technology (AREA)
- Amplifiers (AREA)
- Television Receiver Circuits (AREA)
- Discharge Lamp (AREA)
- Burglar Alarm Systems (AREA)
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 (fr) |
BE (1) | BE405607A (fr) |
DE (1) | DE681003C (fr) |
FR (7) | FR770575A (fr) |
GB (6) | GB435417A (fr) |
NL (2) | NL52223C (fr) |
Families Citing this family (4)
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 |
-
0
- NL NL46052D patent/NL46052C/xx active
- BE BE405607D patent/BE405607A/xx unknown
- NL NL52223D patent/NL52223C/xx active
-
1933
- 1933-10-24 DE DER89049D patent/DE681003C/de not_active Expired
-
1934
- 1934-03-23 FR FR770575D patent/FR770575A/fr not_active Expired
- 1934-03-24 GB GB9249/34A patent/GB435417A/en not_active Expired
- 1934-07-17 US US735600A patent/US2029640A/en not_active Expired - Lifetime
- 1934-07-17 FR FR45063D patent/FR45063E/fr not_active Expired
- 1934-07-19 GB GB21084/34A patent/GB441285A/en not_active Expired
- 1934-10-10 FR FR45442D patent/FR45442E/fr not_active Expired
- 1934-10-11 GB GB29093/34A patent/GB447401A/en not_active Expired
- 1934-10-20 US US749236A patent/US2118866A/en not_active Expired - Lifetime
- 1934-10-20 FR FR45446D patent/FR45446E/fr not_active Expired
- 1934-10-22 FR FR45447D patent/FR45447E/fr not_active Expired
- 1934-10-22 GB GB30180/34A patent/GB449316A/en not_active Expired
-
1935
- 1935-02-15 GB GB4856/35A patent/GB452118A/en not_active Expired
- 1935-02-15 FR FR46060D patent/FR46060E/fr not_active Expired
- 1935-04-15 US US16430A patent/US2137354A/en not_active Expired - Lifetime
- 1935-04-17 FR FR46091D patent/FR46091E/fr not_active Expired
- 1935-04-18 GB GB11940/35A patent/GB446707A/en not_active Expired
-
1936
- 1936-05-01 US US77416A patent/US2097804A/en not_active Expired - Lifetime
- 1936-05-19 US US80584A patent/US2094678A/en not_active Expired - Lifetime
Also Published As
Publication number | Publication date |
---|---|
FR45446E (fr) | 1935-09-04 |
FR45442E (fr) | 1935-09-04 |
GB449316A (en) | 1936-06-22 |
US2097804A (en) | 1937-11-02 |
US2118866A (en) | 1938-05-31 |
DE681003C (de) | 1939-09-13 |
GB452118A (en) | 1936-08-17 |
GB441285A (en) | 1936-01-16 |
NL46052C (fr) | |
US2137354A (en) | 1938-11-22 |
GB435417A (en) | 1935-09-20 |
NL52223C (fr) | |
GB447401A (en) | 1936-05-11 |
FR45063E (fr) | 1935-05-29 |
FR45447E (fr) | 1935-09-04 |
FR46060E (fr) | 1936-02-15 |
GB446707A (en) | 1936-05-05 |
FR46091E (fr) | 1936-02-15 |
BE405607A (fr) | |
US2094678A (en) | 1937-10-05 |
FR770575A (fr) | 1934-09-15 |
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