GB454760A - Improvements in and relating to electric amplifying tubes - Google Patents
Improvements in and relating to electric amplifying tubesInfo
- Publication number
- GB454760A GB454760A GB5451/36A GB545136A GB454760A GB 454760 A GB454760 A GB 454760A GB 5451/36 A GB5451/36 A GB 5451/36A GB 545136 A GB545136 A GB 545136A GB 454760 A GB454760 A GB 454760A
- Authority
- GB
- United Kingdom
- Prior art keywords
- grids
- cathode
- grid
- tube
- bulb
- 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
- H03F1/08—Modifications of amplifiers to reduce detrimental influences of internal impedances of amplifying elements
Abstract
454,760. Thermionic valves. VEREINIGTE GLUHLAMPEN UND ELECTRICITATS AKT.-GES., Ujpest, near Budapest. April 11, 1935, No. 5451/36. Convention date, April 11, 1934. Divided out of 454,606. [Class 39 (i)] An amplifying tube has four grid electrodes, the first grid 5, counting from the cathode 2, being connected metallically to the fourth grid 8 and the second and third grids 6, 7 being connected metallically to each other. The connections are made within the bulb or cap of the tube. In a modification, the fourth grid is connected, within the bulb or cap, to the cathode 2. The tube shown is used in the circuit claimed in Specification 454,606, grids 6, 7 being connected to a constant positive potential and grids 5, 8 acting as input grids. Higher sensitivity is obtained at low anode voltages. For high-frequency amplification, screens may be applied to either of the second or third grids and also to the fourth grid if this is connected to the cathode ; or the screens may be insulated from the grids and earthed or connected to the cathode. To reduce current to the grids 6, 7 the wires forming the grids may be arranged to cover each other in planes perpendicular to the cathode.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| AT454606X | 1934-04-11 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB454760A true GB454760A (en) | 1936-10-07 |
Family
ID=3674460
Family Applications (3)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB5451/36A Expired GB454760A (en) | 1934-04-11 | 1935-04-11 | Improvements in and relating to electric amplifying tubes |
| GB11241/35A Expired GB454606A (en) | 1934-04-11 | 1935-04-11 | Improvements in or relating to electric amplifying circuits |
| GB12849/35A Expired GB457760A (en) | 1934-04-11 | 1935-04-30 | Improvements in or relating to alloy steels |
Family Applications After (2)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB11241/35A Expired GB454606A (en) | 1934-04-11 | 1935-04-11 | Improvements in or relating to electric amplifying circuits |
| GB12849/35A Expired GB457760A (en) | 1934-04-11 | 1935-04-30 | Improvements in or relating to alloy steels |
Country Status (1)
| Country | Link |
|---|---|
| GB (3) | GB454760A (en) |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE757831C (en) * | 1937-01-20 | 1958-04-24 | Fernseh Gmbh | Method for the synchronization of single-tube current tipping devices |
| US2450888A (en) * | 1946-07-27 | 1948-10-12 | Carpenter Steel Co | Wear resistant steel |
| US3096149A (en) * | 1959-07-16 | 1963-07-02 | Monsanto Chemicals | Process for the production of metal borides |
| DE1270377B (en) * | 1959-07-27 | 1968-06-12 | Rene Jacques Mouton | Bare or covered electrode or selenium electrode on an iron basis for arc deposition welding |
-
1935
- 1935-04-11 GB GB5451/36A patent/GB454760A/en not_active Expired
- 1935-04-11 GB GB11241/35A patent/GB454606A/en not_active Expired
- 1935-04-30 GB GB12849/35A patent/GB457760A/en not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| GB454606A (en) | 1936-10-05 |
| GB457760A (en) | 1936-11-30 |
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