GB149218A - Improvements relating to thermionic receiving apparatus for wireless signalling - Google Patents
Improvements relating to thermionic receiving apparatus for wireless signallingInfo
- Publication number
- GB149218A GB149218A GB2096520A GB2096520A GB149218A GB 149218 A GB149218 A GB 149218A GB 2096520 A GB2096520 A GB 2096520A GB 2096520 A GB2096520 A GB 2096520A GB 149218 A GB149218 A GB 149218A
- Authority
- GB
- United Kingdom
- Prior art keywords
- receiver
- circuit
- anode
- amplifier
- grid
- 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
-
- 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
-
- 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
- H04B1/22—Circuits for receivers in which no local oscillation is generated
Landscapes
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Computer Networks & Wireless Communication (AREA)
- Signal Processing (AREA)
- Arrangements For Transmission Of Measured Signals (AREA)
- Amplifiers (AREA)
Abstract
149,218. Loewe, S. April 18, 1918, [Convention date] Wireless signalling.-In apparatus for receiving wireless signals and employing thermionic receiver and amplifiers, the received oscillations are led to the anode of the receiver, and energy transmitted to the input transformer of the amplifier is taken from the grid circuit of the receiver. This arrangement minimizes retroactive self-excitation, and allows conducting connexion in the input transformer to be retained. An aerial 5 is shown connected to the anode of the receiver 1. The grid circuit 4 of the receiver is coupled through a transformer 6, 7 with the grid of the amplifier 11, and energy is drawn from circuit 4 by means of a condenser 13 connected, on one side directly, and on the other side through the coil 6, to the negative pole of the battery. A series of amplifiers may ba used, a telephone 10 being included in the anode circuit of the last amplifier of the series.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE320964T | 1918-04-18 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB149218A true GB149218A (en) | 1922-01-12 |
Family
ID=37989135
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB2096520A Expired GB149218A (en) | 1918-04-18 | 1920-07-12 | Improvements relating to thermionic receiving apparatus for wireless signalling |
Country Status (4)
| Country | Link |
|---|---|
| CH (1) | CH93449A (en) |
| DE (1) | DE320964C (en) |
| FR (1) | FR521401A (en) |
| GB (1) | GB149218A (en) |
-
1918
- 1918-04-18 DE DE1918320964D patent/DE320964C/en not_active Expired
-
1920
- 1920-07-12 GB GB2096520A patent/GB149218A/en not_active Expired
- 1920-07-30 FR FR521401D patent/FR521401A/en not_active Expired
-
1921
- 1921-01-25 CH CH93449D patent/CH93449A/en unknown
Also Published As
| Publication number | Publication date |
|---|---|
| CH93449A (en) | 1922-03-01 |
| DE320964C (en) | 1920-05-15 |
| FR521401A (en) | 1921-07-13 |
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