GB356113A - Improvements in and relating to thermionic amplifying systems - Google Patents
Improvements in and relating to thermionic amplifying systemsInfo
- Publication number
- GB356113A GB356113A GB16188/30A GB1618830A GB356113A GB 356113 A GB356113 A GB 356113A GB 16188/30 A GB16188/30 A GB 16188/30A GB 1618830 A GB1618830 A GB 1618830A GB 356113 A GB356113 A GB 356113A
- Authority
- GB
- United Kingdom
- Prior art keywords
- valves
- indirectly heated
- valve
- class
- negative pole
- 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
- 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
- H04B1/1607—Supply circuits
- H04B1/1623—Supply circuits using tubes
Landscapes
- Engineering & Computer Science (AREA)
- Computer Networks & Wireless Communication (AREA)
- Signal Processing (AREA)
- Electron Sources, Ion Sources (AREA)
Abstract
356,113. Valve amplifying circuits. INTERNATIONAL GENERAL ELECTRIC CO., Inc., 120, Broadway, New York, U.S.A.--(Assignees of Allgemeine Elektricitõts-Ges. ; 2, Friedrich Karl-Ufer, Berlin.) May 26, 1930, No. 16188. Convention date, May 25, 1929. [Class 40 (v).] In a thermionic amplifier having one or more indirectly heated valves, the cathode of each indirectly heated valve is connected separately to the negative pole of the high tension supply through a resistance, thereby avoiding undesirable coupling between the valves. The Figure shows a threestage resistance capacity coupled amplifier according to the invention, in which grid bias for each of the valves 14, 15, 16 is obtained from fixed or variable purely ohmic resistances 28, 29, 30, connected separately to the negative pole of the high tension source 32. The latter circuit is connected to the valve heater circuits through connection 17 which can be made directly or through a condenser. The resistances 28, 29, 30 may be shunted by suitable condensers. The invention may also be applied to transformer coupled stages and to amplifiers employing partly directly and partly indirectly heated valves. Reference has been directed by the Comptroller to Specification 316,306, [Class 40 (v), Wireless signalling &c.].
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE356113X | 1929-05-25 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB356113A true GB356113A (en) | 1931-08-26 |
Family
ID=6290202
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB16188/30A Expired GB356113A (en) | 1929-05-25 | 1930-05-26 | Improvements in and relating to thermionic amplifying systems |
Country Status (2)
| Country | Link |
|---|---|
| FR (1) | FR695884A (en) |
| GB (1) | GB356113A (en) |
-
1930
- 1930-05-20 FR FR695884D patent/FR695884A/en not_active Expired
- 1930-05-26 GB GB16188/30A patent/GB356113A/en not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| FR695884A (en) | 1930-12-23 |
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