GB314605A - Improvements in and relating to methods and means for amplifying in wireless telegraphy and telephony - Google Patents
Improvements in and relating to methods and means for amplifying in wireless telegraphy and telephonyInfo
- Publication number
- GB314605A GB314605A GB1025628A GB1025628A GB314605A GB 314605 A GB314605 A GB 314605A GB 1025628 A GB1025628 A GB 1025628A GB 1025628 A GB1025628 A GB 1025628A GB 314605 A GB314605 A GB 314605A
- Authority
- GB
- United Kingdom
- Prior art keywords
- valve
- resistance
- anode
- shows
- telephony
- 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
- H03F1/42—Modifications of amplifiers to extend the bandwidth
- H03F1/48—Modifications of amplifiers to extend the bandwidth of aperiodic amplifiers
- H03F1/50—Modifications of amplifiers to extend the bandwidth of aperiodic amplifiers with tubes only
Landscapes
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Amplifiers (AREA)
- Microwave Amplifiers (AREA)
Abstract
314,605. Salmond, J. S. C., and Alder, L. S. B. April 4, 1928. Thermionic amplifiers.-An amplifier for alternating current or direct-current pulses comprises a valve with four or more electrodes, the control grid being connected directly to the anode of the preceding valve. Fig. 1 shows four electrode amplifiers V1, V2 coupled by resistances R1, R2 and having their additional grids G<1>1, G<1>2 connected to the cathodes. Fig. 3 shows pentode valves VI, V2, arranged for push-pull amplification. The anode of the valve V1, which has known connections, is connected to the grid G2 of the valve V2 and through a variable resistance H to a split primary transformer G. In a modification (Fig. 2, not shown) of the arrangement in Fig. 3 a differential relay winding is substituted for the transformer A and the resistance H is dispensed with by connecting the high tension supply to an adjustable tapping on a resistance connected between the relay coils.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB1025628A GB314605A (en) | 1928-04-04 | 1928-04-04 | Improvements in and relating to methods and means for amplifying in wireless telegraphy and telephony |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB1025628A GB314605A (en) | 1928-04-04 | 1928-04-04 | Improvements in and relating to methods and means for amplifying in wireless telegraphy and telephony |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB314605A true GB314605A (en) | 1929-07-04 |
Family
ID=9964500
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB1025628A Expired GB314605A (en) | 1928-04-04 | 1928-04-04 | Improvements in and relating to methods and means for amplifying in wireless telegraphy and telephony |
Country Status (1)
| Country | Link |
|---|---|
| GB (1) | GB314605A (en) |
-
1928
- 1928-04-04 GB GB1025628A patent/GB314605A/en not_active Expired
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