GB490652A - Improvements in or relating to electric discharge tubes - Google Patents
Improvements in or relating to electric discharge tubesInfo
- Publication number
- GB490652A GB490652A GB10819/38A GB1081938A GB490652A GB 490652 A GB490652 A GB 490652A GB 10819/38 A GB10819/38 A GB 10819/38A GB 1081938 A GB1081938 A GB 1081938A GB 490652 A GB490652 A GB 490652A
- Authority
- GB
- United Kingdom
- Prior art keywords
- cathode
- june
- mixture
- per cent
- emissive material
- 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
- QVQLCTNNEUAWMS-UHFFFAOYSA-N barium oxide Chemical compound [Ba]=O QVQLCTNNEUAWMS-UHFFFAOYSA-N 0.000 abstract 2
- 239000000463 material Substances 0.000 abstract 2
- 239000000203 mixture Substances 0.000 abstract 2
- IATRAKWUXMZMIY-UHFFFAOYSA-N strontium oxide Chemical compound [O-2].[Sr+2] IATRAKWUXMZMIY-UHFFFAOYSA-N 0.000 abstract 2
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 abstract 1
- 229910000881 Cu alloy Inorganic materials 0.000 abstract 1
- 229910052788 barium Inorganic materials 0.000 abstract 1
- DSAJWYNOEDNPEQ-UHFFFAOYSA-N barium atom Chemical compound [Ba] DSAJWYNOEDNPEQ-UHFFFAOYSA-N 0.000 abstract 1
- 229910052802 copper Inorganic materials 0.000 abstract 1
- 239000010949 copper Substances 0.000 abstract 1
- 230000002939 deleterious effect Effects 0.000 abstract 1
- 230000008016 vaporization Effects 0.000 abstract 1
- 238000009834 vaporization Methods 0.000 abstract 1
- 239000011364 vaporized material Substances 0.000 abstract 1
- 238000004804 winding Methods 0.000 abstract 1
Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
- H01J43/00—Secondary-emission tubes; Electron-multiplier tubes
- H01J43/02—Tubes in which one or a few electrodes are secondary-electron emitting electrodes
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
- H01J1/00—Details of electrodes, of magnetic control means, of screens, or of the mounting or spacing thereof, common to two or more basic types of discharge tubes or lamps
- H01J1/02—Main electrodes
- H01J1/13—Solid thermionic cathodes
Landscapes
- Discharge Lamp (AREA)
- Electron Sources, Ion Sources (AREA)
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| NL78256A NL51881C (nl) | 1936-06-22 | 1936-06-22 | Electronenbuis, voorzien van een secundaire-emissie-electrode |
| GB1715137A GB497589A (en) | 1936-06-22 | 1937-06-19 | Improvements in or relating to electric discharge tubes |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB490652A true GB490652A (en) | 1938-08-18 |
Family
ID=19786677
Family Applications (2)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB10819/38A Expired GB490652A (en) | 1936-06-22 | 1937-06-19 | Improvements in or relating to electric discharge tubes |
| GB1715137A Expired GB497589A (en) | 1936-06-22 | 1937-06-19 | Improvements in or relating to electric discharge tubes |
Family Applications After (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB1715137A Expired GB497589A (en) | 1936-06-22 | 1937-06-19 | Improvements in or relating to electric discharge tubes |
Country Status (5)
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE874176C (de) * | 1939-03-25 | 1953-04-20 | Sueddeutsche Telefon App | Sekundaerelektronenvervielfacher mit Gluehkathode |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE757225C (de) * | 1938-08-30 | 1952-11-17 | Lorenz C Ag | Sekundaerelektronenvervielfacher mit mehreren hintereinander angeordneten und konzentrisch zur als Gluehkathode ausgebildeten Primaerelektronenquelle liegenden Prallelektroden |
| BE864567A (fr) * | 1977-04-25 | 1978-07-03 | Chevron Res | Procede d'hydrogenation d'esters en acools |
-
1936
- 1936-06-22 NL NL78256A patent/NL51881C/xx active
-
1937
- 1937-06-19 SE SE302937A patent/SE102953C1/xx unknown
- 1937-06-19 GB GB10819/38A patent/GB490652A/en not_active Expired
- 1937-06-19 GB GB1715137A patent/GB497589A/en not_active Expired
- 1937-06-21 BE BE422206A patent/BE422206A/xx unknown
- 1937-06-21 FR FR823346D patent/FR823346A/fr not_active Expired
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE874176C (de) * | 1939-03-25 | 1953-04-20 | Sueddeutsche Telefon App | Sekundaerelektronenvervielfacher mit Gluehkathode |
Also Published As
| Publication number | Publication date |
|---|---|
| BE422206A (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html) | 1937-07-31 |
| SE102953C1 (sv) | 1941-11-04 |
| FR823346A (fr) | 1938-01-18 |
| NL51881C (nl) | 1942-02-16 |
| GB497589A (en) | 1938-12-19 |
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