GB565063A - Improvements in or relating to the screening of amplifying valves - Google Patents
Improvements in or relating to the screening of amplifying valvesInfo
- Publication number
- GB565063A GB565063A GB25243A GB25243A GB565063A GB 565063 A GB565063 A GB 565063A GB 25243 A GB25243 A GB 25243A GB 25243 A GB25243 A GB 25243A GB 565063 A GB565063 A GB 565063A
- Authority
- GB
- United Kingdom
- Prior art keywords
- coating
- valve
- electrode
- support
- screening means
- 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
- H01—ELECTRIC ELEMENTS
- H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
- H01J5/00—Details relating to vessels or to leading-in conductors common to two or more basic types of discharge tubes or lamps
- H01J5/02—Vessels; Containers; Shields associated therewith; Vacuum locks
- H01J5/08—Vessels; Containers; Shields associated therewith; Vacuum locks provided with coatings on the walls thereof; Selection of materials for the coatings
Landscapes
- Vessels, Lead-In Wires, Accessory Apparatuses For Cathode-Ray Tubes (AREA)
Abstract
565,063. Thermionic valves. LIEBMANN, G., and CATHODEON, Ltd. Jan. 6, 1943, No. 252. [Class 39 (i)] In a valve having conductors sealed through a vitreous support and connected to respectively an input electrode and an output electrode 16 within the valve, and having internal screening means 19, 20 and 24 to screen the electrode 16 and the portion of its conductor within the valve from the input electrode, the surface of said support between the input and output conductors has a conductive coating 29 thereon insulated from the electrodes and connected to the screening means. If the leads pass through a portion of the envelope rather than a separate vitreous support, a conductive coating on the envelope may be arranged between the leads in a similar manner. The coating 29 is preferably applied to both sides of the vitreous support and, while it is kept at a distance from pins 27 to maintain sufficient insulation, it is brought into contact with a pin 25 connected to the screening means. If a pumping tube extends through the base, the inner coating can be extended down the inside of the tube. The coating may be of graphite or metal applied by evaporation, sputtering, electrodeposition, or chemical means.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB25243A GB565063A (en) | 1943-01-06 | 1943-01-06 | Improvements in or relating to the screening of amplifying valves |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB25243A GB565063A (en) | 1943-01-06 | 1943-01-06 | Improvements in or relating to the screening of amplifying valves |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB565063A true GB565063A (en) | 1944-10-25 |
Family
ID=9701106
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB25243A Expired GB565063A (en) | 1943-01-06 | 1943-01-06 | Improvements in or relating to the screening of amplifying valves |
Country Status (1)
| Country | Link |
|---|---|
| GB (1) | GB565063A (en) |
-
1943
- 1943-01-06 GB GB25243A patent/GB565063A/en not_active Expired
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| GB1385973A (en) | Symbol display tube having an auxiliary electrode | |
| GB565063A (en) | Improvements in or relating to the screening of amplifying valves | |
| GB564546A (en) | Improvements in or relating to cathode ray tubes | |
| GB608677A (en) | Improvements in gas-filled electron discharge devices | |
| GB454760A (en) | Improvements in and relating to electric amplifying tubes | |
| GB648046A (en) | Improvements in or relating to electric discharge tubes comprising disc-like electrodes | |
| GB588370A (en) | Improvements in or relating to electron discharge devices | |
| GB833432A (en) | Improvements in or relating to indirectly heated cathodes for electron discharge devices and to heater elements therefor | |
| GB519854A (en) | Improvements in and relating to vacuum electric discharge devices | |
| GB732335A (en) | Improvements in or relating to x-ray tubes | |
| GB670561A (en) | Improvements in or relating to electron discharge devices employing secondary-electron emission and electrodes for use therein | |
| GB467296A (en) | Improvements in or relating to electric discharge devices | |
| GB650560A (en) | Grid-controlled gaseous electron discharge device | |
| GB230011A (en) | Improvements in electron discharge devices | |
| GB691399A (en) | Improvements in or relating to travelling wave tubes | |
| GB573762A (en) | Aerial mounting | |
| GB720982A (en) | Improvements in or relating to electric discharge tubes for decimetre- and centimetre-waves | |
| GB1319042A (en) | Cold cathode gas discharge tubes | |
| GB586351A (en) | Improvements in or relating to thermionic valves | |
| GB874723A (en) | Improvements in or relating to electronic valves | |
| GB610932A (en) | Improvements relating to electric discharge tubes | |
| GB579435A (en) | Improvements relating to electric discharge devices | |
| GB708971A (en) | Improvements in or relating to electric discharge tubes having electrodes with flat surfaces | |
| GB965102A (en) | Improvements in ionic pump | |
| GB922533A (en) | Improvements relating to thermionic valves |