NL236247A - - Google Patents

Info

Publication number
NL236247A
NL236247A NL236247DA NL236247A NL 236247 A NL236247 A NL 236247A NL 236247D A NL236247D A NL 236247DA NL 236247 A NL236247 A NL 236247A
Authority
NL
Netherlands
Application number
Priority date (The priority date 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 date listed.)
Publication of NL236247A publication Critical patent/NL236247A/xx

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
NL236247D 1958-02-25 NL236247A (enrdf_load_html_response)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP3013172X 1958-02-25

Publications (1)

Publication Number Publication Date
NL236247A true NL236247A (enrdf_load_html_response)

Family

ID=17895398

Family Applications (2)

Application Number Title Priority Date Filing Date
NL104829D NL104829C (enrdf_load_html_response) 1958-02-25
NL236247D NL236247A (enrdf_load_html_response) 1958-02-25

Family Applications Before (1)

Application Number Title Priority Date Filing Date
NL104829D NL104829C (enrdf_load_html_response) 1958-02-25

Country Status (2)

Country Link
US (1) US3013172A (enrdf_load_html_response)
NL (2) NL236247A (enrdf_load_html_response)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3401295A (en) * 1965-05-21 1968-09-10 Hitachi Ltd Periodic permanent magnet focusing system for electron discharge devices
DE3014404C2 (de) * 1979-04-11 1985-04-18 Nippon Electric Co., Ltd., Tokio/Tokyo Lauffeldröhre

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2797360A (en) * 1953-03-26 1957-06-25 Int Standard Electric Corp Travelling wave amplifiers
US2847607A (en) * 1953-04-29 1958-08-12 Bell Telephone Labor Inc Magnetic focusing system
US2867744A (en) * 1953-09-30 1959-01-06 Bell Telephone Labor Inc Traveling wave tube
US2867745A (en) * 1953-10-07 1959-01-06 Bell Telephone Labor Inc Periodic magnetic focusing system
US2863086A (en) * 1954-02-09 1958-12-02 Bell Telephone Labor Inc Traveling wave tube
US2812470A (en) * 1954-10-22 1957-11-05 Bell Telephone Labor Inc Periodic focusing in traveling wave tubes
GB785110A (en) * 1955-06-28 1957-10-23 Standard Telephones Cables Ltd Electron tube magnetic focusing device

Also Published As

Publication number Publication date
US3013172A (en) 1961-12-12
NL104829C (enrdf_load_html_response)

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