GB158720A - Improvements in or relating to thermionic or oscillation valves - Google Patents
Improvements in or relating to thermionic or oscillation valvesInfo
- Publication number
- GB158720A GB158720A GB2832019A GB2832019A GB158720A GB 158720 A GB158720 A GB 158720A GB 2832019 A GB2832019 A GB 2832019A GB 2832019 A GB2832019 A GB 2832019A GB 158720 A GB158720 A GB 158720A
- Authority
- GB
- United Kingdom
- Prior art keywords
- tube
- secured
- bulb
- sealing
- 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
- 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
- Electron Sources, Ion Sources (AREA)
Abstract
158,720. Mullard, S. R. Nov. 14, 1919. Vacuum tubes.-A sealing-tube for the leads of an electrode of a thermionic valve, such as a filament, is secured to a re-entrant portion of the bulb, and extends beyond the contour of the bulb, so as to permit of replacement of the electrode, and to provide a long leakage surface between the electrodes. As shown in Fig. 6, the sealing-tube 50 for the lead 53 is secured to a re-entrant portion 51, which is surrounded by a metal band 55 carrying the supporting-arms 54 of a grid or anode. In another arrangement, Fig. 1, the sealing-tube 11 is secured to another tube 8, which is sealed to a re-entrant part 4. The end of a hooked spring support 19 for the filament is bound around the neck of a tube 16 mounted in a similar way in a tube 9 at the other end of the bulb. The grid and anode supporting-arms 32, 41 are secured to metal cylinders 33, 42 fitting tightly in the tubes 8, 9.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB2832019A GB158720A (en) | 1919-11-14 | 1919-11-14 | Improvements in or relating to thermionic or oscillation valves |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB2832019A GB158720A (en) | 1919-11-14 | 1919-11-14 | Improvements in or relating to thermionic or oscillation valves |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB158720A true GB158720A (en) | 1921-02-14 |
Family
ID=10273785
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB2832019A Expired GB158720A (en) | 1919-11-14 | 1919-11-14 | Improvements in or relating to thermionic or oscillation valves |
Country Status (1)
| Country | Link |
|---|---|
| GB (1) | GB158720A (en) |
-
1919
- 1919-11-14 GB GB2832019A patent/GB158720A/en not_active Expired
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