GB817068A - Improvements in or relating to electrical discharge tubes - Google Patents
Improvements in or relating to electrical discharge tubesInfo
- Publication number
- GB817068A GB817068A GB28900/57A GB2890057A GB817068A GB 817068 A GB817068 A GB 817068A GB 28900/57 A GB28900/57 A GB 28900/57A GB 2890057 A GB2890057 A GB 2890057A GB 817068 A GB817068 A GB 817068A
- Authority
- GB
- United Kingdom
- Prior art keywords
- cathode
- relating
- sept
- electrical discharge
- discharge tubes
- 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
-
- 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
- H01J2893/0002—Construction arrangements of electrode systems
- H01J2893/0005—Fixing of electrodes
Landscapes
- Lasers (AREA)
Abstract
817,068. Thermionic valves. PHILIPS ELECTRICAL INDUSTRIES Ltd. Sept. 13, 1957 [Sept. 17, 1956], No. 28900/57. Class 39(1). A discharge tube has an electrode-centring mica 2, the cathode 8 being centred by an additional member 5 having two narrow strips 12, 13 defining an elongated rectangular slot 6 ; this slot is wider than the grid supports, but narrower than the cathode (as for example by about 50Á), so that the latter is wedged firmly therein. The strips 12, 13 are very thin, e.g. 100-150Á, so that the heat conducted from the cathode is small, and can be made even smaller by providing recesses 11. Member 5 is positioned and secured by grid rods 4 and tags 8 on the anode.
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
NL817068X | 1956-09-17 |
Publications (1)
Publication Number | Publication Date |
---|---|
GB817068A true GB817068A (en) | 1959-07-22 |
Family
ID=19838920
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB28900/57A Expired GB817068A (en) | 1956-09-17 | 1957-09-13 | Improvements in or relating to electrical discharge tubes |
Country Status (1)
Country | Link |
---|---|
GB (1) | GB817068A (en) |
-
1957
- 1957-09-13 GB GB28900/57A patent/GB817068A/en not_active Expired
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