GB771550A - Improvements in or relating to magnetically controlled electronic valves - Google Patents

Improvements in or relating to magnetically controlled electronic valves

Info

Publication number
GB771550A
GB771550A GB7697/55A GB769755A GB771550A GB 771550 A GB771550 A GB 771550A GB 7697/55 A GB7697/55 A GB 7697/55A GB 769755 A GB769755 A GB 769755A GB 771550 A GB771550 A GB 771550A
Authority
GB
United Kingdom
Prior art keywords
pieces
electrodes
march
rod
pole
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
GB7697/55A
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.)
Siemens and Halske AG
Siemens AG
Original Assignee
Siemens and Halske AG
Siemens AG
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 Siemens and Halske AG, Siemens AG filed Critical Siemens and Halske AG
Publication of GB771550A publication Critical patent/GB771550A/en
Expired legal-status Critical Current

Links

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
    • H01J21/18—Tubes with a single discharge path having magnetic control means; having both magnetic and electrostatic control means

Landscapes

  • Recording Or Reproducing By Magnetic Means (AREA)

Abstract

771,550. Electron beam apparatus. SIEMENS & HALSKE AKT.-GES. March 16, 1955 [March 16, 1954], No. 7697/55. Class 39(1). The auxiliary electrodes of the beam valve described in Specification 709,728 are designed as serrated pole-pieces of the magnetic control system. The serrations of the pole-pieces 4, 5 are disposed between the rod-shaped anode 3 and cathode 1, the focussing electrode 2, which is also rod-shaped, being at cathode potential or lower. The electrodes 4, 5 are of mumetal and bear tightly against the wall of the tube, forming a relatively small non-magnetic gap between the electrodes 4, 5 and the head-pieces 7, 8 of a pick-up sensitive to a sound recording medium 9. Figs. 4, 5 show auxiliary electrodes 12, 13 as solid blocks of ferromagnetic material with three contact pins projecting through the envelope from each block and adapted to engage the sockets of two corresponding magnetic yokes 14, 15 in an external magnetic circuit. The other projecting pins connect to the anode and filament contacts 16, 17, 18.
GB7697/55A 1954-03-16 1955-03-16 Improvements in or relating to magnetically controlled electronic valves Expired GB771550A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE771550X 1954-03-16

Publications (1)

Publication Number Publication Date
GB771550A true GB771550A (en) 1957-04-03

Family

ID=6678883

Family Applications (1)

Application Number Title Priority Date Filing Date
GB7697/55A Expired GB771550A (en) 1954-03-16 1955-03-16 Improvements in or relating to magnetically controlled electronic valves

Country Status (1)

Country Link
GB (1) GB771550A (en)

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