AT108772B - Amplifier circuit without line replicas. - Google Patents
Amplifier circuit without line replicas.Info
- Publication number
- AT108772B AT108772B AT108772DA AT108772B AT 108772 B AT108772 B AT 108772B AT 108772D A AT108772D A AT 108772DA AT 108772 B AT108772 B AT 108772B
- Authority
- AT
- Austria
- Prior art keywords
- amplifier circuit
- line
- transformer
- replicas
- circuit
- Prior art date
Links
Landscapes
- Amplifiers (AREA)
Description
<Desc/Clms Page number 1>
Verstärkerschaltung ohne Leitungsnachbildungen.
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zur Folge haben.
Eine beispielsweise geeignete Schaltung ist in der Fig. 1 dargestellt. Die in Verbindung mit der Batterie als Dvnatron geschaltete Glühkathodenröhre b mit der Glühkathode c. dem Gitter fi und der Platte e ist mittels der beiden Endübertrager f und g so zwischen die beiden Fernleitungen I und II eingeschaltet, dass die beiden Sekundärwicklungen der Übertrager f Imd g in Reihe mit dem negativen
Widerstand cl, e der Röhre an den positiven Pol und einen mittleren Spannungspunkt A der Batterie a angeschlossen sind. Die Glühkathode c wird beispielsweise durch eine Batterie t geheizt.
Die Wirkungsweise dieser Schaltung beruht auf den bekannten Vorgängen bei Hintereinander-
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zu verstärkenden Ströme je nach der Sprechrichtung in der Sekundärwicklung des Ubertragers f oder g erzeugt. Dadurch entsteht durch die. Wirkung des negativen Röhrenwiderstandes zwischen Gitter und Anode in der Wicklung des andern Übertragers (analog wie in dem positiven Widerstande @ in Fig. 2) eine stärkere Spannungsänderung, welche das Abgehen verstärkter Ströme zur Folge hat.
Im Gegensatz zu den bisher bekannten Verstärkerschaltungen findet hier keine. Rückwirkung
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schaltungen, die eine Leitungsnachbildung erfordern würden, notwendig.
Durch wiederholte Anwendung der Schaltung gemäss Fig. 1 (analog den bekannten Kaskaden-
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mehrere in Serie oder parallel geschaltete Röhren in eine oder beide der die Sekundärwicklungen der Übertrager verbindenden Leitungen gelegt werden.
PATENT-ANSPRÜCHE :
1. Nach beiden Sprechrichtungen wirksame Verstärkerschaltung ohne Leitungsnachbildungen unter Verwendung eines negativen Widerstandes in Serienschaltung mit zwei Endübertragern, dadurch gekennzeichnet, dass als negative Widerstände eine oder mehrere Glühkathodenröhren verwendet werden.
**WARNUNG** Ende DESC Feld kannt Anfang CLMS uberlappen**.
<Desc / Clms Page number 1>
Amplifier circuit without line replicas.
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have as a consequence.
A circuit suitable for example is shown in FIG. The hot cathode tube b with the hot cathode c connected to the battery as a dnatron. the grid fi and the plate e is connected by means of the two end transformers f and g between the two long-distance lines I and II that the two secondary windings of the transformer f Imd g in series with the negative
Resistance cl, e of the tube are connected to the positive pole and a middle voltage point A of the battery a. The hot cathode c is heated by a battery t, for example.
The mode of operation of this circuit is based on the known processes in
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Currents to be amplified are generated in the secondary winding of the transformer f or g, depending on the direction of speech. This creates through the. Effect of the negative tube resistance between the grid and anode in the winding of the other transformer (analogous to the positive resistance @ in Fig. 2) a stronger voltage change, which results in the dissipation of increased currents.
In contrast to the previously known amplifier circuits, none is found here. Retroactive effect
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circuits that would require a line simulation are necessary.
By repeated application of the circuit according to Fig. 1 (analogous to the known cascade
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several tubes connected in series or in parallel are placed in one or both of the lines connecting the secondary windings of the transformers.
PATENT CLAIMS:
1. Amplifier circuit effective in both speech directions without line simulations using a negative resistor in series with two end transformers, characterized in that one or more hot cathode tubes are used as negative resistors.
** WARNING ** End of DESC field may overlap beginning of CLMS **.
Claims (1)
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE108772X | 1924-06-10 |
Publications (1)
Publication Number | Publication Date |
---|---|
AT108772B true AT108772B (en) | 1928-02-10 |
Family
ID=5651477
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
AT108772D AT108772B (en) | 1924-06-10 | 1925-05-20 | Amplifier circuit without line replicas. |
Country Status (1)
Country | Link |
---|---|
AT (1) | AT108772B (en) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE958573C (en) * | 1952-12-14 | 1957-02-21 | Rudolf Mehr | Circuit arrangement for reducing attenuation in telecommunications systems |
DE1031831B (en) * | 1952-07-21 | 1958-06-12 | Rudolf Mehr | Amplifier with at least two electron tube quadrupoles that are simultaneously permeable in both directions of transmission |
-
1925
- 1925-05-20 AT AT108772D patent/AT108772B/en active
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE1031831B (en) * | 1952-07-21 | 1958-06-12 | Rudolf Mehr | Amplifier with at least two electron tube quadrupoles that are simultaneously permeable in both directions of transmission |
DE958573C (en) * | 1952-12-14 | 1957-02-21 | Rudolf Mehr | Circuit arrangement for reducing attenuation in telecommunications systems |
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