FR750565A - Improvements to indirectly heated cathodes - Google Patents
Improvements to indirectly heated cathodesInfo
- Publication number
- FR750565A FR750565A FR750565DA FR750565A FR 750565 A FR750565 A FR 750565A FR 750565D A FR750565D A FR 750565DA FR 750565 A FR750565 A FR 750565A
- Authority
- FR
- France
- Prior art keywords
- indirectly heated
- heated cathodes
- cathodes
- indirectly
- heated
- 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
- 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
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE415398X | 1932-02-16 |
Publications (1)
Publication Number | Publication Date |
---|---|
FR750565A true FR750565A (en) | 1933-08-12 |
Family
ID=6448466
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
FR750565D Expired FR750565A (en) | 1932-02-16 | 1933-02-11 | Improvements to indirectly heated cathodes |
Country Status (3)
Country | Link |
---|---|
FR (1) | FR750565A (en) |
GB (2) | GB400058A (en) |
NL (1) | NL36127C (en) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE764504C (en) * | 1936-09-01 | 1952-12-22 | Siemens & Halske A G | Coiled oxide cathode, especially for gas or vapor-filled discharge vessels |
DE755099C (en) * | 1935-03-06 | 1953-10-26 | Int Standard Electric Corp | Indirectly heated glow cathode designed as a flat cathode for electron tubes |
-
0
- NL NL36127D patent/NL36127C/xx active
-
1933
- 1933-02-11 FR FR750565D patent/FR750565A/en not_active Expired
- 1933-02-16 GB GB4801/33A patent/GB400058A/en not_active Expired
- 1933-02-16 GB GB4800/33A patent/GB415398A/en not_active Expired
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE755099C (en) * | 1935-03-06 | 1953-10-26 | Int Standard Electric Corp | Indirectly heated glow cathode designed as a flat cathode for electron tubes |
DE764504C (en) * | 1936-09-01 | 1952-12-22 | Siemens & Halske A G | Coiled oxide cathode, especially for gas or vapor-filled discharge vessels |
Also Published As
Publication number | Publication date |
---|---|
GB415398A (en) | 1934-08-16 |
GB400058A (en) | 1933-10-19 |
NL36127C (en) |
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