BE427954A - - Google Patents
Info
- Publication number
- BE427954A BE427954A BE427954DA BE427954A BE 427954 A BE427954 A BE 427954A BE 427954D A BE427954D A BE 427954DA BE 427954 A BE427954 A BE 427954A
- Authority
- BE
- Belgium
- Prior art keywords
- widest
- grid
- cathode
- points
- openings
- Prior art date
Links
- 239000000463 material Substances 0.000 claims description 9
- BDAGIHXWWSANSR-NJFSPNSNSA-N hydroxyformaldehyde Chemical compound O[14CH]=O BDAGIHXWWSANSR-NJFSPNSNSA-N 0.000 claims description 4
- 229910000018 strontium carbonate Inorganic materials 0.000 claims description 4
- 239000000203 mixture Substances 0.000 claims description 3
- BVKZGUZCCUSVTD-UHFFFAOYSA-L Carbonate Chemical compound [O-]C([O-])=O BVKZGUZCCUSVTD-UHFFFAOYSA-L 0.000 claims 1
- AYJRCSIUFZENHW-UHFFFAOYSA-L barium carbonate Chemical compound [Ba+2].[O-]C([O-])=O AYJRCSIUFZENHW-UHFFFAOYSA-L 0.000 description 2
- 239000011248 coating agent Substances 0.000 description 1
- 238000000576 coating method Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
- H01J21/00—Vacuum tubes
- H01J21/02—Tubes with a single discharge path
- H01J21/06—Tubes with a single discharge path having electrostatic control means only
- H01J21/10—Tubes with a single discharge path having electrostatic control means only with one or more immovable internal control electrodes, e.g. triode, pentode, octode
- H01J21/12—Tubes with variable amplification factor
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
- H01J2893/00—Discharge tubes and lamps
- H01J2893/0032—Tubes with variable amplification factor
Landscapes
- Solid Thermionic Cathode (AREA)
Publications (1)
| Publication Number | Publication Date |
|---|---|
| BE427954A true BE427954A (en, 2012) |
Family
ID=88424
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| BE427954D BE427954A (en, 2012) |
Country Status (1)
| Country | Link |
|---|---|
| BE (1) | BE427954A (en, 2012) |
-
0
- BE BE427954D patent/BE427954A/fr unknown
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