GB403298A - Improvements in or relating to thermionic valves - Google Patents
Improvements in or relating to thermionic valvesInfo
- Publication number
- GB403298A GB403298A GB15756/33A GB1575633A GB403298A GB 403298 A GB403298 A GB 403298A GB 15756/33 A GB15756/33 A GB 15756/33A GB 1575633 A GB1575633 A GB 1575633A GB 403298 A GB403298 A GB 403298A
- Authority
- GB
- United Kingdom
- Prior art keywords
- envelope
- relating
- thermionic valves
- fins
- valves
- 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
- H01J5/00—Details relating to vessels or to leading-in conductors common to two or more basic types of discharge tubes or lamps
- H01J5/02—Vessels; Containers; Shields associated therewith; Vacuum locks
- H01J5/08—Vessels; Containers; Shields associated therewith; Vacuum locks provided with coatings on the walls thereof; Selection of materials for the coatings
Landscapes
- Measuring Or Testing Involving Enzymes Or Micro-Organisms (AREA)
- Hybrid Cells (AREA)
- Ink Jet (AREA)
Abstract
403,298. Thermionic valves. TELEFUNKEN GES. FUR DRAHTLOSE TELEGRAPHIE, 12, Hallesches Ufer, Berlin. May 31, 1933, No. 15756. Convention date, May 31, 1932. [Class 39 (i).] The cooling of liquid-or air-cooled valves is facilitated by the provision on the external surface of the envelope of a plurality of needleshaped fins. The fins may be formed of material which is different from or is the same as that of the envelope and they may be integral with the envelope or formed on a member separate therefrom.
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE403298X | 1932-05-31 |
Publications (1)
Publication Number | Publication Date |
---|---|
GB403298A true GB403298A (en) | 1933-12-21 |
Family
ID=6416488
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB15756/33A Expired GB403298A (en) | 1932-05-31 | 1933-05-31 | Improvements in or relating to thermionic valves |
Country Status (2)
Country | Link |
---|---|
FR (1) | FR403298A (en) |
GB (1) | GB403298A (en) |
-
1909
- 1909-05-24 FR FR403298A patent/FR403298A/en not_active Expired
-
1933
- 1933-05-31 GB GB15756/33A patent/GB403298A/en not_active Expired
Also Published As
Publication number | Publication date |
---|---|
FR403298A (en) | 1909-10-29 |
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