GB375481A - An indirectly heated cathode for thermionic valves - Google Patents
An indirectly heated cathode for thermionic valvesInfo
- Publication number
- GB375481A GB375481A GB12267/31A GB1226731A GB375481A GB 375481 A GB375481 A GB 375481A GB 12267/31 A GB12267/31 A GB 12267/31A GB 1226731 A GB1226731 A GB 1226731A GB 375481 A GB375481 A GB 375481A
- Authority
- GB
- United Kingdom
- Prior art keywords
- april
- insulator
- heater
- base
- cathodes
- 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
- AYJRCSIUFZENHW-UHFFFAOYSA-L barium carbonate Chemical compound [Ba+2].[O-]C([O-])=O AYJRCSIUFZENHW-UHFFFAOYSA-L 0.000 abstract 2
- 239000012212 insulator Substances 0.000 abstract 2
- QCWXUUIWCKQGHC-UHFFFAOYSA-N Zirconium Chemical compound [Zr] QCWXUUIWCKQGHC-UHFFFAOYSA-N 0.000 abstract 1
- 239000011230 binding agent Substances 0.000 abstract 1
- 230000015572 biosynthetic process Effects 0.000 abstract 1
- 238000000576 coating method Methods 0.000 abstract 1
- 238000007689 inspection Methods 0.000 abstract 1
- CPLXHLVBOLITMK-UHFFFAOYSA-N magnesium oxide Inorganic materials [Mg]=O CPLXHLVBOLITMK-UHFFFAOYSA-N 0.000 abstract 1
- 239000000395 magnesium oxide Substances 0.000 abstract 1
- AXZKOIWUVFPNLO-UHFFFAOYSA-N magnesium;oxygen(2-) Chemical compound [O-2].[Mg+2] AXZKOIWUVFPNLO-UHFFFAOYSA-N 0.000 abstract 1
- 238000000034 method Methods 0.000 abstract 1
- 239000012811 non-conductive material Substances 0.000 abstract 1
- 239000011148 porous material Substances 0.000 abstract 1
- 235000019353 potassium silicate Nutrition 0.000 abstract 1
- NTHWMYGWWRZVTN-UHFFFAOYSA-N sodium silicate Chemical compound [Na+].[Na+].[O-][Si]([O-])=O NTHWMYGWWRZVTN-UHFFFAOYSA-N 0.000 abstract 1
- WFKWXMTUELFFGS-UHFFFAOYSA-N tungsten Chemical compound [W] WFKWXMTUELFFGS-UHFFFAOYSA-N 0.000 abstract 1
- 229910001928 zirconium oxide Inorganic materials 0.000 abstract 1
Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
- H01B3/00—Insulators or insulating bodies characterised by the insulating materials; Selection of materials for their insulating or dielectric properties
- H01B3/02—Insulators or insulating bodies characterised by the insulating materials; Selection of materials for their insulating or dielectric properties mainly consisting of inorganic substances
- H01B3/08—Insulators or insulating bodies characterised by the insulating materials; Selection of materials for their insulating or dielectric properties mainly consisting of inorganic substances quartz; glass; glass wool; slag wool; vitreous enamels
- H01B3/085—Particles bound with glass
-
- 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
- H01J1/20—Cathodes heated indirectly by an electric current; Cathodes heated by electron or ion bombardment
Landscapes
- Chemical & Material Sciences (AREA)
- Inorganic Chemistry (AREA)
- Solid Thermionic Cathode (AREA)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE375481X | 1930-04-29 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB375481A true GB375481A (en) | 1932-06-30 |
Family
ID=6344087
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB12267/31A Expired GB375481A (en) | 1930-04-29 | 1931-04-25 | An indirectly heated cathode for thermionic valves |
Country Status (5)
| Country | Link |
|---|---|
| US (1) | US1983621A (OSRAM) |
| BE (1) | BE379240A (OSRAM) |
| FR (1) | FR715895A (OSRAM) |
| GB (1) | GB375481A (OSRAM) |
| NL (1) | NL36929C (OSRAM) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB734196A (en) * | 1952-06-11 | 1955-07-27 | Standard Telephones Cables Ltd | Improvements in or relating to indirectly heated cathodes |
| US7193367B2 (en) * | 2000-12-13 | 2007-03-20 | Hamamatsu Photonics K.K. | Indirectly heated electrode for gas discharge tube, gas discharge tube with this, and its operating device |
| CN1266734C (zh) * | 2000-12-13 | 2006-07-26 | 浜松光子学株式会社 | 气体放电管用旁热型电极 |
-
0
- BE BE379240D patent/BE379240A/xx unknown
- NL NL36929D patent/NL36929C/xx active
-
1931
- 1931-04-23 FR FR715895D patent/FR715895A/fr not_active Expired
- 1931-04-24 US US532480A patent/US1983621A/en not_active Expired - Lifetime
- 1931-04-25 GB GB12267/31A patent/GB375481A/en not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| US1983621A (en) | 1934-12-11 |
| FR715895A (fr) | 1931-12-10 |
| BE379240A (OSRAM) | |
| NL36929C (OSRAM) |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| GB418155A (en) | Improvements in and relating to electric heating elements | |
| US1983621A (en) | Indirectly heated cathode | |
| US1980675A (en) | Method and means for preventing heater-cathode leakage in a radio tube | |
| GB356978A (en) | Improvements in or relating to electric discharge tubes | |
| GB277997A (OSRAM) | ||
| GB396018A (en) | Glass spiralling machine | |
| GB271885A (en) | Improvements in or relating to vacuum electric tube devices | |
| GB326617A (en) | Improvements in thermionic tubes | |
| GB387275A (en) | Improvements in and relating to cathode ray tubes | |
| GB256265A (en) | Thermionic tube | |
| GB391021A (en) | Improvements in or relating to thermionic valves | |
| GB404646A (en) | Improvements in or relating to thermionic devices | |
| GB463011A (en) | Improvements in thermionic tubes | |
| GB339451A (en) | Improvements in or relating to electron emitting cathodes for electric discharge devices | |
| GB726210A (en) | An electrode assembly for thermionic valves | |
| GB400351A (en) | A highly emissive cathode for cathode-ray tubes | |
| DE544533C (de) | Indirekt beheizte Kathode fuer Elektronenroehren | |
| GB409851A (en) | Improvements in and relating to protective coverings on electron discharge tubes | |
| GB424912A (en) | Improvements in and relating to thermionic cathodes | |
| GB446652A (en) | Improvements in and relating to indirectly heated cathodes | |
| GB350429A (OSRAM) | ||
| GB427718A (en) | Electric discharge vessel | |
| GB734196A (en) | Improvements in or relating to indirectly heated cathodes | |
| GB382603A (en) | Improvements in or relating to thermionic valves | |
| GB307930A (OSRAM) |