GB415237A - Improvements relating to thermionic valve circuits - Google Patents
Improvements relating to thermionic valve circuitsInfo
- Publication number
- GB415237A GB415237A GB1756033A GB1756033A GB415237A GB 415237 A GB415237 A GB 415237A GB 1756033 A GB1756033 A GB 1756033A GB 1756033 A GB1756033 A GB 1756033A GB 415237 A GB415237 A GB 415237A
- Authority
- GB
- United Kingdom
- Prior art keywords
- tuned
- circuit
- thermionic valve
- secondary winding
- circuits
- 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
- 238000004804 winding Methods 0.000 abstract 2
Classifications
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B15/00—Suppression or limitation of noise or interference
- H04B15/005—Reducing noise, e.g. humm, from the supply
Landscapes
- Engineering & Computer Science (AREA)
- Computer Networks & Wireless Communication (AREA)
- Signal Processing (AREA)
- Amplifiers (AREA)
Abstract
415,237. Valve amplifying circuits. SIEMENS BROS. & CO., Ltd., Caxton House, Tothill Street, and CRUTCH, L. S., 15, Mundania Road, East Dulwich, both in London. June 20, 1933, No. 17560. [Class 40 (v).] The cathode of a thermionic valve, which may be an audio frequency amplifier, is heated from one secondary winding 5, 7 of a transformer and hum, due to harmonics of the supply frequency, is removed by a circuit Z associated with another secondary winding 3, 4 which supplies a current rectifying device RB. The circuit Z may be a series circuit tuned to the dominant harmonic or a combination of tuned circuits which may be connected in parallel and tuned to different frequencies or a condenser.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB1756033A GB415237A (en) | 1933-06-20 | 1933-06-20 | Improvements relating to thermionic valve circuits |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB1756033A GB415237A (en) | 1933-06-20 | 1933-06-20 | Improvements relating to thermionic valve circuits |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB415237A true GB415237A (en) | 1934-08-23 |
Family
ID=10097314
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB1756033A Expired GB415237A (en) | 1933-06-20 | 1933-06-20 | Improvements relating to thermionic valve circuits |
Country Status (1)
| Country | Link |
|---|---|
| GB (1) | GB415237A (en) |
-
1933
- 1933-06-20 GB GB1756033A patent/GB415237A/en not_active Expired
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