GB744127A - Improvements relating to circuit arrangements embodying cathode ray tubes - Google Patents

Improvements relating to circuit arrangements embodying cathode ray tubes

Info

Publication number
GB744127A
GB744127A GB518451A GB518451A GB744127A GB 744127 A GB744127 A GB 744127A GB 518451 A GB518451 A GB 518451A GB 518451 A GB518451 A GB 518451A GB 744127 A GB744127 A GB 744127A
Authority
GB
United Kingdom
Prior art keywords
ray tubes
cathode ray
improvements relating
circuit arrangements
arrangements embodying
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
Application number
GB518451A
Inventor
Hilary Moss
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
EMI Ltd
Electrical and Musical Industries Ltd
Original Assignee
EMI Ltd
Electrical and Musical Industries Ltd
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.)
Filing date
Publication date
Application filed by EMI Ltd, Electrical and Musical Industries Ltd filed Critical EMI Ltd
Priority to GB518451A priority Critical patent/GB744127A/en
Publication of GB744127A publication Critical patent/GB744127A/en
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
    • H01J29/00—Details of cathode-ray tubes or of electron-beam tubes of the types covered by group H01J31/00
    • H01J29/46—Arrangements of electrodes and associated parts for generating or controlling the ray or beam, e.g. electron-optical arrangement
    • H01J29/58—Arrangements for focusing or reflecting ray or beam

Abstract

744,127. Cathode-ray tubes. ELECTRIC & MUSICAL INDUSTRIES, Ltd. Feb. 14, 1952 [March 3, 1951], No. 5184/51. Class 39 (1). The voltage applied to the first and second anodes 4, 5 of a cathode-ray tube 1 are in such ratio that when the E.H.T. voltage varies the focal plane of the electrostatic lens varies in opposition to the change in of the focal plane of the magnetic lens 7, e.g. a coil or permanent magnet. The E.H.T. on the second anode 5 and the wall anode 6 may be 8 kv. and the voltage on first anode 4 about 1 kv. Specification 665,094 is referred to.
GB518451A 1951-03-03 1951-03-03 Improvements relating to circuit arrangements embodying cathode ray tubes Expired GB744127A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB518451A GB744127A (en) 1951-03-03 1951-03-03 Improvements relating to circuit arrangements embodying cathode ray tubes

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB518451A GB744127A (en) 1951-03-03 1951-03-03 Improvements relating to circuit arrangements embodying cathode ray tubes

Publications (1)

Publication Number Publication Date
GB744127A true GB744127A (en) 1956-02-01

Family

ID=9791291

Family Applications (1)

Application Number Title Priority Date Filing Date
GB518451A Expired GB744127A (en) 1951-03-03 1951-03-03 Improvements relating to circuit arrangements embodying cathode ray tubes

Country Status (1)

Country Link
GB (1) GB744127A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN115464246A (en) * 2022-09-26 2022-12-13 河北众航高能科技有限公司 Electron beam focusing magnetic lens driving circuit and electron beam welding equipment thereof

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN115464246A (en) * 2022-09-26 2022-12-13 河北众航高能科技有限公司 Electron beam focusing magnetic lens driving circuit and electron beam welding equipment thereof
CN115464246B (en) * 2022-09-26 2023-12-22 河北众航高能科技有限公司 Electron beam focusing magnetic lens driving circuit and electron beam welding equipment thereof

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