GB536450A - Improvements in or relating to electron discharge valve arrangements - Google Patents
Improvements in or relating to electron discharge valve arrangementsInfo
- Publication number
- GB536450A GB536450A GB29949/39A GB2994939A GB536450A GB 536450 A GB536450 A GB 536450A GB 29949/39 A GB29949/39 A GB 29949/39A GB 2994939 A GB2994939 A GB 2994939A GB 536450 A GB536450 A GB 536450A
- Authority
- GB
- United Kingdom
- Prior art keywords
- electrode
- nov
- distribution
- negative
- electron current
- 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
- 230000004048 modification Effects 0.000 abstract 2
- 238000012986 modification Methods 0.000 abstract 2
- 238000010079 rubber tapping Methods 0.000 abstract 1
Classifications
-
- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03G—CONTROL OF AMPLIFICATION
- H03G3/00—Gain control in amplifiers or frequency changers
- H03G3/02—Manually-operated control
- H03G3/04—Manually-operated control in untuned amplifiers
- H03G3/06—Manually-operated control in untuned amplifiers having discharge tubes
- H03G3/08—Manually-operated control in untuned amplifiers having discharge tubes incorporating negative feedback
Landscapes
- Amplifiers (AREA)
Abstract
536,450. Valve amplifying circuits. MARCONI'S WIRELESS TELEGRAPH CO., Ltd. Nov. 13, 1939, No. 29949. Convention date, Nov. 12, 1938. [Class 40 (v)] Negative feed-back in an audio-frequency amplifier is derived from an auxiliary electrode 5, which follows the input signal alternations by reason of the resistance 11, and is applied through a condenser 12 to the input circuit The distribution of electron current between the auxiliary electrode 5 and main output electrode 3 is varied by controlling the potential of an intermediate control electrode 6. This control is effected by a variable bias tapping 14 or by using A.V.C. potential obtained in an earlier stage of the receiver. On occurrence of strong input, the output from anode 3 is reduced by making the electrode 6 more negative, whereupon the negative feed-back from electrode 5 is increased thereby reducing the swing of the control grid 4 and eliminating possible distortion. In one modification the functions of the electrodes 3 and 5 are interchanged, and in another modification, Fig. 4 (not shown), two adjacent anodes are used and the distribution of electron current therebetween is controlled by a regulatable magnetic field. Reference has been directed by the Comptroller to Specification 528,893.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US536450XA | 1938-11-12 | 1938-11-12 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB536450A true GB536450A (en) | 1941-05-15 |
Family
ID=21985644
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB29949/39A Expired GB536450A (en) | 1938-11-12 | 1939-11-13 | Improvements in or relating to electron discharge valve arrangements |
Country Status (1)
| Country | Link |
|---|---|
| GB (1) | GB536450A (en) |
-
1939
- 1939-11-13 GB GB29949/39A patent/GB536450A/en not_active Expired
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US2121434A (en) | Amplifier with oscillation producing adjustment | |
| GB673034A (en) | Improvements in or relating to circuit-arrangements for amplifying high frequency electrical oscillations | |
| GB536450A (en) | Improvements in or relating to electron discharge valve arrangements | |
| GB360630A (en) | Improvements in or relating to thermionic amplifiers | |
| GB467915A (en) | Improvements in or relating to electron discharge devices and to circuits therefor | |
| GB437804A (en) | Improvements in or relating to thermionic valves for use in radio signalling systems | |
| GB672373A (en) | Improvements in or relating to thermionic valve circuit arrangements | |
| GB716555A (en) | Improvements in or relating to thermionic valve amplifiers | |
| GB361351A (en) | Improvements in thermionic valve circuits as applied to radiotelephonic systems and apparatus | |
| GB672256A (en) | Improved electronic valve amplifiers | |
| GB412477A (en) | Improvements in or relating to electron discharge device amplifiers | |
| GB623746A (en) | Improvements in or relating to electronic tube amplifiers | |
| GB653398A (en) | Improvements in or relating to amplifying circuits embodying valves employing secondary electron emission | |
| GB755388A (en) | Improvements in or relating to electric discharge tube amplifiers | |
| GB386501A (en) | Improvements in or relating to electron discharge device amplifiers | |
| GB515762A (en) | Improvements in or relating to high frequency amplifier arrangements | |
| GB541272A (en) | Improvements in thermionic valve circuit arrangements | |
| GB474133A (en) | Improvements in thermionic amplifiers | |
| GB471128A (en) | Improvements in or relating to modulated carrier wave transmitters | |
| GB683319A (en) | Improvements in or relating to thermionic valve amplifiers | |
| GB617184A (en) | Improvements in or relating to thermionic valve circuits | |
| GB485854A (en) | Improvements in or relating to thermionic amplifying systems | |
| GB739449A (en) | Improvements in or relating to electric amplifier circuits | |
| GB645936A (en) | Improvements in or relating to high-frequency electric receivers and amplifiers | |
| GB434170A (en) | Improvements in or relating to thermionic valves and circuit arrangements incorporating the same |