GB438181A - Improvements in or relating to electron discharge devices - Google Patents
Improvements in or relating to electron discharge devicesInfo
- Publication number
- GB438181A GB438181A GB6816/35A GB681635A GB438181A GB 438181 A GB438181 A GB 438181A GB 6816/35 A GB6816/35 A GB 6816/35A GB 681635 A GB681635 A GB 681635A GB 438181 A GB438181 A GB 438181A
- Authority
- GB
- United Kingdom
- Prior art keywords
- rods
- pinch
- cylindrical
- flat
- march
- 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
- H01J21/00—Vacuum tubes
- H01J21/02—Tubes with a single discharge path
- H01J21/06—Tubes with a single discharge path having electrostatic control means only
- H01J21/10—Tubes with a single discharge path having electrostatic control means only with one or more immovable internal control electrodes, e.g. triode, pentode, octode
- H01J21/12—Tubes with variable amplification factor
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
- H01J2893/00—Discharge tubes and lamps
- H01J2893/0032—Tubes with variable amplification factor
Landscapes
- Manufacture Of Electron Tubes, Discharge Lamp Vessels, Lead-In Wires, And The Like (AREA)
Abstract
438,181. Discharge apparatus. TELEFUNKEN GES. FUR DRAHTLOSE TELEGRAPHIE, 12, Hallesches Ufer, Berlin. March 4, 1935, No. 6816. Convention date, March 2, 1934. Drawings to Specification. [Class 39 (i)] The electrode system includes a large number of rod-like electrodes which are furnished either singly or in groups, with external leads whereby they may be selectively grouped. The rods may be arranged on a cylindrical surface and sealed into an annular or flat pinch or on a number of parallel plane surfaces and sealed into a flat pinch with appropriate bendings. They may surround a cylindrical or flat cathode and be surrounded by a cylindrical or box-shaped anode. Insulating bridges may be secured at the upper or lower ends of the rods or at both, and the lower bridge may be supported from the envelope, the pinch or the stem, connection being made to the leads by flexible wires. The rods may be given different biasses and fed with input potentials or some of them may be positively biassed or connected to the cathode whilst the remainder serve as control electrode. Or the rods may be connected all together or in two equal groups, to provide a single control grid or a pair of grids.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE438181X | 1934-03-02 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB438181A true GB438181A (en) | 1935-11-12 |
Family
ID=6507132
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB6816/35A Expired GB438181A (en) | 1934-03-02 | 1935-03-04 | Improvements in or relating to electron discharge devices |
Country Status (1)
| Country | Link |
|---|---|
| GB (1) | GB438181A (en) |
-
1935
- 1935-03-04 GB GB6816/35A patent/GB438181A/en not_active Expired
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