GB195964A - Improvements in and relating to electron discharge apparatus - Google Patents
Improvements in and relating to electron discharge apparatusInfo
- Publication number
- GB195964A GB195964A GB9031/23A GB903123A GB195964A GB 195964 A GB195964 A GB 195964A GB 9031/23 A GB9031/23 A GB 9031/23A GB 903123 A GB903123 A GB 903123A GB 195964 A GB195964 A GB 195964A
- Authority
- GB
- United Kingdom
- Prior art keywords
- anode
- grid
- control grid
- inductance
- cathode
- 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
- H03B—GENERATION OF OSCILLATIONS, DIRECTLY OR BY FREQUENCY-CHANGING, BY CIRCUITS EMPLOYING ACTIVE ELEMENTS WHICH OPERATE IN A NON-SWITCHING MANNER; GENERATION OF NOISE BY SUCH CIRCUITS
- H03B5/00—Generation of oscillations using amplifier with regenerative feedback from output to input
- H03B5/08—Generation of oscillations using amplifier with regenerative feedback from output to input with frequency-determining element comprising lumped inductance and capacitance
- H03B5/10—Generation of oscillations using amplifier with regenerative feedback from output to input with frequency-determining element comprising lumped inductance and capacitance active element in amplifier being vacuum tube
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
- H01J19/00—Details of vacuum tubes of the types covered by group H01J21/00
- H01J19/82—Circuit arrangements not adapted to a particular application of the tube and not otherwise provided for
Landscapes
- Inductance-Capacitance Distribution Constants And Capacitance-Resistance Oscillators (AREA)
- Measuring Fluid Pressure (AREA)
Abstract
195,964. British Thomson - Houston Co., Ltd., (Assignees of Prince, D. C.). April 8, 1922, [Convention date]. Vacuum or low-pressure apparatus, arrangements of.-A discharge device such as a thermionic valve for producing oscillations comprises a cathode, a control grid, an anode, and a second grid interposed between the control grid and the anode and connected with an oscillatory circuit at such a point that the potential of the grid varies in accordance with, and at a slightly lower value than the potential of the anode. Secondary electrons emitted from the anode are prevented from reaching the control grid by the positive potential on the second grid. In one arrangement, the second grid 5, Fig. 1. between the control grid 3 and the anode 4 is connected with a point 12 on the inductance which, with a capacity 7, forms an oscillatory circuit between the anode and the control grid, an intermediate point 8 being connected with the cathode 2. A source of energy 9 is connected between the anode and cathode. A choke 10 prevents the passage of high frequency currents through the source 9, and a condenser 11 prevents the direct current from being short-circuited through the inductance. A coil 13 in the work circuit is coupled with the inductance. In another arrangement, the second grid 5, Fig. 2, is connected with one end of the inductance 14, the other end of which is connected through the source 9 with the cathode, the anode 4 being connected with an intermediate point 16. Back coupling may be provided by a condenser 7, and, in addition, by a winding 15 in the circuit of the control grid. Secondary emission of electrons from the anode may be prevented by the use of a black body as the anode, or by providing a rough surface on the anode, or by the use of a material such as copper or nickel for the anode. The Specifications as open to inspection under Sect. 91 (3) (a) comprises also the use of the valve for rectifying. This subject-matter does not appear in the Specification as accepted.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US195964XA | 1922-04-08 | 1922-04-08 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB195964A true GB195964A (en) | 1924-04-03 |
Family
ID=21794039
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB9031/23A Expired GB195964A (en) | 1922-04-08 | 1923-03-29 | Improvements in and relating to electron discharge apparatus |
Country Status (4)
| Country | Link |
|---|---|
| BE (1) | BE195964A (en) |
| DE (1) | DE458373C (en) |
| FR (1) | FR564722A (en) |
| GB (1) | GB195964A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2009115083A2 (en) * | 2008-03-20 | 2009-09-24 | Tesat-Spacecom Gmbh & Co. Kg | Rf component and the method thereof for surface finishing |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE755332C (en) * | 1937-09-03 | 1954-03-01 | Telefunken Gmbh | Device for the trouble-free operation of pipes with braking grids in short wave circuits |
-
0
- BE BE195964D patent/BE195964A/xx unknown
-
1922
- 1922-10-18 DE DEG57639D patent/DE458373C/en not_active Expired
-
1923
- 1923-03-29 GB GB9031/23A patent/GB195964A/en not_active Expired
- 1923-04-06 FR FR564722D patent/FR564722A/en not_active Expired
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2009115083A2 (en) * | 2008-03-20 | 2009-09-24 | Tesat-Spacecom Gmbh & Co. Kg | Rf component and the method thereof for surface finishing |
| WO2009115083A3 (en) * | 2008-03-20 | 2009-11-26 | Tesat-Spacecom Gmbh & Co. Kg | Rf component and the method thereof for surface finishing |
Also Published As
| Publication number | Publication date |
|---|---|
| BE195964A (en) | |
| FR564722A (en) | 1924-01-09 |
| DE458373C (en) | 1928-04-05 |
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