DE329068C - High-frequency receiving arrangement with a direct current relay controlled by a cathode tube - Google Patents
High-frequency receiving arrangement with a direct current relay controlled by a cathode tubeInfo
- Publication number
- DE329068C DE329068C DE1919329068D DE329068DD DE329068C DE 329068 C DE329068 C DE 329068C DE 1919329068 D DE1919329068 D DE 1919329068D DE 329068D D DE329068D D DE 329068DD DE 329068 C DE329068 C DE 329068C
- Authority
- DE
- Germany
- Prior art keywords
- relay
- tube
- direct current
- current
- cathode 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
Links
Classifications
-
- A—HUMAN NECESSITIES
- A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
- A01B—SOIL WORKING IN AGRICULTURE OR FORESTRY; PARTS, DETAILS, OR ACCESSORIES OF AGRICULTURAL MACHINES OR IMPLEMENTS, IN GENERAL
- A01B63/00—Lifting or adjusting devices or arrangements for agricultural machines or implements
- A01B63/02—Lifting or adjusting devices or arrangements for agricultural machines or implements for implements mounted on tractors
- A01B63/10—Lifting or adjusting devices or arrangements for agricultural machines or implements for implements mounted on tractors operated by hydraulic or pneumatic means
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L27/00—Modulated-carrier systems
Landscapes
- Life Sciences & Earth Sciences (AREA)
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Soil Sciences (AREA)
- Environmental Sciences (AREA)
- Computer Networks & Wireless Communication (AREA)
- Signal Processing (AREA)
- Video Image Reproduction Devices For Color Tv Systems (AREA)
- Details Of Television Scanning (AREA)
Description
Die Erfindung bezieht sich auf eine Empfangsstation für Hochfrequenztelegraphie auf Leitungen, und zwar ist vorausgesetzt, daß die ankommenden hochfrequenten Wechselströme nach Verstärkung einem Relais zugeführt werden, das auf Gleichstrom anspricht. Bisher fügte man, um den für das Relais geeigneten Gleichstrom hervorzubringen, einen Gleichrichter, meist eine Kathodenröhre, zwischen den Verstärker und das Relais, wodurch dem letzteren ein pulsierender Gleichstrom zugeführt, wurde.The invention relates to a receiving station for high frequency telegraphy Lines, that is, it is assumed that the incoming high-frequency alternating currents after amplification are fed to a relay that responds to direct current. So far, in order to produce the direct current suitable for the relay, a rectifier, usually a cathode tube, between the amplifier and the Relay, whereby a pulsating direct current was supplied to the latter.
Gemäß der Erfindung wird nicht eine solche Gleichrichterröhre, d. h. eine Kathodenröhre in der Gleichrichtschaltung, sondern eine Kathodenröhre in Verstärkerschaltung, d. h. ohne die den Anodenstrom abdrosselnde Gegenspannungsbatterie im Gitterkreis, benutzt und dem im Anodenkreis der Röhre liegendenAccording to the invention, such a rectifier tube, i. H. a cathode tube in the rectifying circuit, but a cathode tube in an amplifier circuit, d. H. without the counter-voltage battery in the grid circuit, which throttles the anode current, is used and the one lying in the anode circle of the tube
Relais eine solche Kapazität erteilt indemRelays such a capacity granted by
z. B. ein Kondensator ihm parallel geschaltet wird —, daß der durch das Relais gewöhnlich fließende Anodenstrom (Gleichstrom) beim Ansprechen der Röhre verringert wird.z. B. a capacitor is connected in parallel to him - that usually through the relay flowing anode current (direct current) is reduced when the tube responds.
Diese Verringerung kommt dadurch zustande,. daß beim Ansprechen der Röhre ein Wechselstrom dem Anodenstrom überlagert wird, der dadurch in einen pulsierenden Gleichstrom umgeformt wird. Zufolge der Kapazitat des Relais bzw. des parallel liegenden Kondensators wirken jedoch die Wellenberge nicht auf das Relais, vielmehr unterliegt dieses nur noch der Wirkung des um die Wellenberge erniedrigten Gleichstroms. Der Anker des Relais wird so eingestellt, daß er von diesem verringerten Gleichstrom nicht mehr festgehalten wird. Das Relais spricht auf diese Weise an. . "This reduction comes about. that when the tube responds, an alternating current is superimposed on the anode current, which is thereby converted into a pulsating direct current. According to the capacity of the relay or the parallel capacitor, however, the wave crests act not on the relay, rather this is only subject to the effect of the Wave crests of lowered direct current. The armature of the relay is set so that it is no longer held by this reduced direct current. The relay speaks in this way. . "
Zweckmäßig wird das Relais, um es empfindlicher zu machen, mit Gegenamperewindungen ausgerüstet, auch ein kleiner Kondensator in dem Gitterkreis der Röhre eingefügt. In order to make it more sensitive, the relay is expedient with counter amp windings equipped, also inserted a small capacitor in the lattice circle of the tube.
Die Erfindung ist auf der Zeichnung schematisch veranschaulicht.The invention is illustrated schematically in the drawing.
Fig. ι zeigt die Röhre 1 mit der Anode 2, dem Gitter 3, der Glühkathode 4, der Heizbatterie 5 für letztere, der Anodenbatterie 6, dem Eingangstransformator 7 und dem Relais 8, welches von dem Kondensator 9 überbrückt ist.. Das Relais hat eine zweite Magnetwicklung II, die der im Anodenkreis liegenden Wicklung I entgegenwirkt, jedoch so bemessen ist, daß für gewöhnlich der Anker iö des Relais noch gerade angezogen bleibt und beispielsweise den Kontakt 11 im Stromkreis des Empfängers (z. B. eines Schreibapparates) geschlossen hält. Die Wicklung II wird von der Batterie 12 über einen Regulier widerstand 13 gespeist. Im Gitterkreis der Röhre ist parallel zu einem Silitwiderstand 14 ein kleiner Kondensator 15 eingeschaltet, durch den die Wirksamkeit der Einrichtung gesteigert wird.Fig. Ι shows the tube 1 with the anode 2, the grid 3, the hot cathode 4, the heating battery 5 for the latter, the anode battery 6, the input transformer 7 and the relay 8, which is bridged by the capacitor 9 is .. The relay has a second magnet winding II, the one in the anode circuit lying winding I counteracts, but is dimensioned so that usually the Armature iö of the relay still just remains attracted and, for example, the contact 11 im Keeps the electrical circuit of the receiver (e.g. a writing instrument) closed. the Winding II is fed from the battery 12 via a regulating resistor 13. in the The lattice circle of the tube is a small capacitor 15 parallel to a silicon resistor 14 switched on, which increases the effectiveness of the facility.
Fig. 2 stellt die Wirkung der Einrichtung mittels Schaulinie dar. Für gewöhnlich fließt durch das Relais (Wicklung I) der Gleichstrom /. Sobald die Röhre anspricht,Fig. 2 shows the operation of the device by means of a visual line. Usually the direct current / flows through the relay (winding I). As soon as the tube responds,
Claims (3)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE333970T | 1920-04-29 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| DE329068C true DE329068C (en) | 1920-11-13 |
Family
ID=6213316
Family Applications (2)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| DE1919329068D Expired DE329068C (en) | 1920-04-29 | 1919-10-14 | High-frequency receiving arrangement with a direct current relay controlled by a cathode tube |
| DE1920333970D Expired DE333970C (en) | 1920-04-29 | 1920-04-29 | High frequency arrangement with a direct current relay controlled by a cathode tube for a Hughes apparatus |
Family Applications After (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| DE1920333970D Expired DE333970C (en) | 1920-04-29 | 1920-04-29 | High frequency arrangement with a direct current relay controlled by a cathode tube for a Hughes apparatus |
Country Status (2)
| Country | Link |
|---|---|
| DE (2) | DE329068C (en) |
| NL (1) | NL74418C (en) |
-
0
- NL NL74418D patent/NL74418C/xx active
-
1919
- 1919-10-14 DE DE1919329068D patent/DE329068C/en not_active Expired
-
1920
- 1920-04-29 DE DE1920333970D patent/DE333970C/en not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| DE333970C (en) | 1921-03-04 |
| NL74418C (en) |
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