GB374416A - Improvements in or relating to electric discharge tubes - Google Patents
Improvements in or relating to electric discharge tubesInfo
- Publication number
- GB374416A GB374416A GB36787/30A GB3678730A GB374416A GB 374416 A GB374416 A GB 374416A GB 36787/30 A GB36787/30 A GB 36787/30A GB 3678730 A GB3678730 A GB 3678730A GB 374416 A GB374416 A GB 374416A
- Authority
- GB
- United Kingdom
- Prior art keywords
- electrodes
- valve
- heated
- electrode
- dec
- 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
- H01J19/00—Details of vacuum tubes of the types covered by group H01J21/00
- H01J19/02—Electron-emitting electrodes; Cathodes
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
- H01J2893/00—Discharge tubes and lamps
- H01J2893/0001—Electrodes and electrode systems suitable for discharge tubes or lamps
Landscapes
- Circuit Arrangements For Discharge Lamps (AREA)
Abstract
374,416. Thermionic valves. TELEFUNKEN GES. FUR DRAHTLOSE TELEGRAPHIE, 12, Hallesches Ufer, Berlin. Dec. 5, 1930, No. 36787. Convention date, Dec. 6, 1929. Void [Published under Sect. 91 of the Acts]. [Class 39 (i).] A valve has two or more electrodes heated directly or indirectly, and arranged symmetrically or otherwise. The heating of the several electrodes may be unequal. With the application of an alternating potential to the electrodes, a square-topped or peaked wave-form is produced ; the valve may be used for frequency multiplication. The valve shown has two grids G<1>, G<2> and two heated electrodes E<1>, E<2>, connected in circuit so that G<1> is the control electrode when the electrode E<1> is the cathode ; similarly G2 is the control electrode for the electrode E<2> as cathode. The valve may contain mercury. The heating current may be reduced or cut off automatically, the electrodes being heated by the discharge.
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE374416X | 1929-12-06 |
Publications (1)
Publication Number | Publication Date |
---|---|
GB374416A true GB374416A (en) | 1932-06-09 |
Family
ID=6343648
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB36787/30A Expired GB374416A (en) | 1929-12-06 | 1930-12-05 | Improvements in or relating to electric discharge tubes |
Country Status (1)
Country | Link |
---|---|
GB (1) | GB374416A (en) |
-
1930
- 1930-12-05 GB GB36787/30A patent/GB374416A/en not_active Expired
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