GB402964A - Improvements in or relating to thermionic amplifiers - Google Patents
Improvements in or relating to thermionic amplifiersInfo
- Publication number
- GB402964A GB402964A GB5956/33D GB595633D GB402964A GB 402964 A GB402964 A GB 402964A GB 5956/33 D GB5956/33 D GB 5956/33D GB 595633 D GB595633 D GB 595633D GB 402964 A GB402964 A GB 402964A
- Authority
- GB
- United Kingdom
- Prior art keywords
- resistance
- constant
- grid bias
- voltage
- feb
- 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
- H03F3/00—Amplifiers with only discharge tubes or only semiconductor devices as amplifying elements
- H03F3/26—Push-pull amplifiers; Phase-splitters therefor
- H03F3/28—Push-pull amplifiers; Phase-splitters therefor with tubes only
Landscapes
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Amplifiers (AREA)
Abstract
402,964. Valve amplifying circuits. TELEFUNKEN GES. FUR DRAHTLOSE TELEGRAPHIE, 12, Hallesches Ufer, Berlin. Feb. 27, 1933, No. 5965. Convention date, Feb. 25, 1932. [Class 40 (v).] Relates to push-pull amplifiers in which the valves are active in turns for alternate half-waves and the grid bias is determined by the voltage-drop in a resistance 6, with smoothing-condenser 7, in the plate circuit. In known arrangements of this kind (Fig. 1, not shown) the grid bias ceases to be independent of amplitude if the amplitude is so great that the plate current falls to zero during negative halfwaves (Fig. 2, not shown). According to the invention this is prevented by the use of a device for maintaining a constant voltage across the resistance 6 ; thus, the resistance may be shunted by a glow discharge lamp (Fig. 3, not shown) ; or the grid bias may be tapped off a resistance 10 in series with an iron-hydrogen or like constant-current resistance 10 ; or there may be a common constant-voltage device together with two constant-current devices, one for each valve, (Fig. 5, not shown).
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE751058X | 1932-02-25 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB402964A true GB402964A (en) | 1933-12-14 |
Family
ID=6651314
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB5956/33D Expired GB402964A (en) | 1932-02-25 | 1933-02-27 | Improvements in or relating to thermionic amplifiers |
Country Status (2)
| Country | Link |
|---|---|
| FR (1) | FR751058A (en) |
| GB (1) | GB402964A (en) |
-
1933
- 1933-02-18 FR FR751058D patent/FR751058A/en not_active Expired
- 1933-02-27 GB GB5956/33D patent/GB402964A/en not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| FR751058A (en) | 1933-08-26 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| GB479485A (en) | Improvements in degenerative feed-back circuits for audio frequency amplifiers | |
| GB543035A (en) | Improvements in electron discharge amplifiers | |
| GB402964A (en) | Improvements in or relating to thermionic amplifiers | |
| GB499538A (en) | Amplifier arrangement for television purposes | |
| GB444050A (en) | Improvements in or relating to thermionic valve amplifiers | |
| GB440612A (en) | Improvements in or relating to electron discharge device amplifiers | |
| GB662677A (en) | Phase inverter system | |
| GB637094A (en) | Improvements in or relating to circuit-arrangements for acting upon the natural frequency of oscillatory circuits | |
| GB664341A (en) | Improvements in or relating to electronic discharge-tube amplifiers | |
| GB413544A (en) | Improvements in or relating to thermionic valve circuit arrangements | |
| GB606004A (en) | Improvements in push-pull amplifying circuits | |
| GB515584A (en) | Improvements in or relating to radio receivers | |
| GB436922A (en) | Improvements in or relating to modulated carrier wave circuit arrangements | |
| GB412477A (en) | Improvements in or relating to electron discharge device amplifiers | |
| GB461966A (en) | Improvements in and relating to electric wave amplifying systems | |
| GB305944A (en) | Improvements in or relating to energy supply systems for thermionic valves | |
| GB375725A (en) | Improvements in or relating to modulation circuit arrangements for wireless signalling and the like | |
| GB585482A (en) | Improvements relating to thermionic valve amplifiers | |
| GB493050A (en) | Improvements in or relating to methods of amplifying electrical signals | |
| GB483229A (en) | Improvements in or relating to d.c. transformers | |
| GB515047A (en) | Improvements in or relating to modulator circuit arrangements for high-frequency electrical signalling | |
| GB420754A (en) | Improvements in or relating to thermionic apparatus for the production or amplification of ultra short waves | |
| GB505926A (en) | Improvements in and relating to mixing amplifiers | |
| GB505598A (en) | Improvements in or relating to automatic tuning devices for radio receivers | |
| GB526418A (en) | Improvements in or relating to modulator arrangements |