GB477787A - Electric discharge tube - Google Patents
Electric discharge tubeInfo
- Publication number
- GB477787A GB477787A GB23789/36A GB2378936A GB477787A GB 477787 A GB477787 A GB 477787A GB 23789/36 A GB23789/36 A GB 23789/36A GB 2378936 A GB2378936 A GB 2378936A GB 477787 A GB477787 A GB 477787A
- Authority
- GB
- United Kingdom
- Prior art keywords
- plates
- holes
- cathode
- grid
- filament
- 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
- H01J1/00—Details of electrodes, of magnetic control means, of screens, or of the mounting or spacing thereof, common to two or more basic types of discharge tubes or lamps
- H01J1/02—Main electrodes
- H01J1/13—Solid thermionic cathodes
- H01J1/15—Cathodes heated directly by an electric current
- H01J1/18—Supports; Vibration-damping arrangements
Landscapes
- Electrotherapy Devices (AREA)
Abstract
477,787. Thermionic valves. EGYESULT IZZOLAMPA ES VILLAMOSSAGI RESZVENYTARSASAG. Aug. 31, 1936, No. 23789. Convention date, Aug. 31, 1935. [Class 39 (i)] A cathode 3 is supported at the ends by mica or other insulating plates 1a and spaced intermediately by two or more similar plates 1b, all the plates being mounted on one or more metal frame members 2, and provided with holes 6 which surround or nearly surround the cathode ; the cathode consists of a coated filament, or of a coated wire wound on a filament. The holes in the intermediate plates may consist of slots extending from the edges, and the diameter of the holes is not more than 0À3 mm. The frame members 2 are of U- section pressed to secure the plates. Two filament sections are tensioned by a spring 11, and are connected at the other end with a U-shaped member 5, which is subsequently cut at the centre to form connections. The frame may be mounted within the grid 8 so as to bear against the grid wires, or the grid may be wound on the frame.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| HU477787X | 1935-08-31 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB477787A true GB477787A (en) | 1938-01-06 |
Family
ID=10979291
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB23789/36A Expired GB477787A (en) | 1935-08-31 | 1936-08-31 | Electric discharge tube |
Country Status (3)
| Country | Link |
|---|---|
| FR (1) | FR810429A (en) |
| GB (1) | GB477787A (en) |
| NL (1) | NL43639C (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2549551A (en) * | 1948-01-15 | 1951-04-17 | Bell Telephone Labor Inc | Grid electrode structure and manufacturing method therefor |
| US2707771A (en) * | 1946-07-05 | 1955-05-03 | Sylvania Electric Prod | Electron discharge device of the dynatron oscillator type |
-
0
- NL NL43639D patent/NL43639C/xx active
-
1936
- 1936-08-26 FR FR810429D patent/FR810429A/en not_active Expired
- 1936-08-31 GB GB23789/36A patent/GB477787A/en not_active Expired
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2707771A (en) * | 1946-07-05 | 1955-05-03 | Sylvania Electric Prod | Electron discharge device of the dynatron oscillator type |
| US2549551A (en) * | 1948-01-15 | 1951-04-17 | Bell Telephone Labor Inc | Grid electrode structure and manufacturing method therefor |
Also Published As
| Publication number | Publication date |
|---|---|
| NL43639C (en) | |
| FR810429A (en) | 1937-03-22 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| GB477787A (en) | Electric discharge tube | |
| US2075761A (en) | Electron discharge tube and the like | |
| US2084734A (en) | Electron discharge device | |
| GB403458A (en) | Improvements in and relating to whole wave electric rectifier valves | |
| GB518204A (en) | Improvements in electric discharge lamps | |
| GB214455A (en) | Improvements in electric discharge tubes | |
| GB500239A (en) | Improvements in or relating to electric discharge tubes comprising cantilever springs | |
| GB298715A (en) | Improvements in electrode structures for thermionic valves | |
| GB439792A (en) | Grid electrode for electron tubes | |
| GB246832A (en) | Improvements in thermionic discharge tube devices | |
| GB531076A (en) | Improvements in or relating to thermionic electrode structures | |
| GB307058A (en) | ||
| GB608742A (en) | Improvements in or relating to electric discharge tubes | |
| GB467025A (en) | Improvements in or relating to electric discharge devices | |
| GB401740A (en) | Improvements in or relating to electric discharge devices such as thermionic valves | |
| GB242662A (en) | Improvements in electrodes for electron discharge devices | |
| GB414357A (en) | Improvements in and relating to thermionic valves | |
| GB261915A (en) | Improvements in thermionic valves | |
| GB532250A (en) | Improvements in or relating to electron discharge devices | |
| GB418238A (en) | Improvements in thermionic valves | |
| GB217647A (en) | Improvements in or relating to vacuum electric tube devices | |
| GB439851A (en) | Improvements in or relating to electrode structures for electron discharge devices | |
| GB314395A (en) | Improvements in or relating to vacuum electric tube devices | |
| GB523574A (en) | Improvements relating to thermionic valves | |
| GB285843A (en) | Improvements in or relating to incandescent cathode discharge tubes |