GB386484A - Improvements relating to electron discharge tubes or thermionic valves - Google Patents
Improvements relating to electron discharge tubes or thermionic valvesInfo
- Publication number
- GB386484A GB386484A GB9812/32A GB981232A GB386484A GB 386484 A GB386484 A GB 386484A GB 9812/32 A GB9812/32 A GB 9812/32A GB 981232 A GB981232 A GB 981232A GB 386484 A GB386484 A GB 386484A
- Authority
- GB
- United Kingdom
- Prior art keywords
- screen
- pinch
- supports
- thermionic valves
- april
- 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
- H01J19/42—Mounting, supporting, spacing, or insulating of electrodes or of electrode assemblies
- H01J19/44—Insulation between electrodes or supports within the vacuum space
Landscapes
- Image-Pickup Tubes, Image-Amplification Tubes, And Storage Tubes (AREA)
Abstract
386,484. Thermionic valves. NAAMLOOZE VENNOOTSCHAP PHILIPS' GLOEILAMPENFABRIEKEN, 13D, Emmasingel, Eindhoven, Holland. April 5, 1932, No. 9812. Convention date, April 9, 1931. [Class 39 (i).] A screen 13 of electrically insulating refractory material is arranged between the electrode system and the pinch, so as to be spaced away from the electrodes, and the entire radiating portion of the cathode is on the side of the screen remote from the pinch. The screen is mounted on the anode supports 14, 15 and the other electrode supports - pass through holes in it. The material of the screen may be steatite, magnesium oxide, lavite, lava, or the substance known under the Registered Trade Mark " Isolantite." A glass member 11 mounted on the anode 7 secures the grid supports and holds the cathode 10, which may be directly or indirectly heated, on hooks 12. The screen may consist of a cap above the pinch.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE386484X | 1931-04-09 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB386484A true GB386484A (en) | 1933-01-19 |
Family
ID=6370975
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB9812/32A Expired GB386484A (en) | 1931-04-09 | 1932-04-05 | Improvements relating to electron discharge tubes or thermionic valves |
Country Status (1)
| Country | Link |
|---|---|
| GB (1) | GB386484A (en) |
-
1932
- 1932-04-05 GB GB9812/32A patent/GB386484A/en not_active Expired
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