NL201701A - - Google Patents
Info
- Publication number
- NL201701A NL201701A NL201701DA NL201701A NL 201701 A NL201701 A NL 201701A NL 201701D A NL201701D A NL 201701DA NL 201701 A NL201701 A NL 201701A
- Authority
- NL
- Netherlands
Links
Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
- H01J23/00—Details of transit-time tubes of the types covered by group H01J25/00
- H01J23/02—Electrodes; Magnetic control means; Screens
- H01J23/08—Focusing arrangements, e.g. for concentrating stream of electrons, for preventing spreading of stream
- H01J23/087—Magnetic focusing arrangements
- H01J23/0873—Magnetic focusing arrangements with at least one axial-field reversal along the interaction space, e.g. P.P.M. focusing
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2882439X | 1954-11-12 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| NL201701A true NL201701A (en:Method) |
Family
ID=17727689
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| NL201701D NL201701A (en:Method) | 1954-11-12 |
Country Status (3)
| Country | Link |
|---|---|
| US (1) | US2882439A (en:Method) |
| BE (1) | BE545514A (en:Method) |
| NL (1) | NL201701A (en:Method) |
Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| NL237015A (en:Method) * | 1958-03-12 | |||
| US2991382A (en) * | 1958-03-20 | 1961-07-04 | Nippon Electric Co | Electron beam tube focusing device |
| US3027484A (en) * | 1958-03-29 | 1962-03-27 | Kobe Kogyo Kabushiki Kaisha | Periodic magnetic focussing system for travelling wave tubes |
| US3001094A (en) * | 1959-01-14 | 1961-09-19 | Nippon Electric Co | Magnetic focusing device |
| US3106659A (en) * | 1959-03-24 | 1963-10-08 | Kearfott Company Inc | Microwave tube construction |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| BE521065A (en:Method) * | 1952-07-01 | |||
| US2741718A (en) * | 1953-03-10 | 1956-04-10 | Sperry Rand Corp | High frequency apparatus |
| US2797360A (en) * | 1953-03-26 | 1957-06-25 | Int Standard Electric Corp | Travelling wave amplifiers |
-
0
- NL NL201701D patent/NL201701A/xx unknown
- BE BE545514D patent/BE545514A/xx unknown
-
1955
- 1955-09-19 US US535233A patent/US2882439A/en not_active Expired - Lifetime
Also Published As
| Publication number | Publication date |
|---|---|
| BE545514A (en:Method) | |
| US2882439A (en) | 1959-04-14 |