GB497620A - Device for magnetic deflection of a cathode ray - Google Patents

Device for magnetic deflection of a cathode ray

Info

Publication number
GB497620A
GB497620A GB27382/37A GB2738237A GB497620A GB 497620 A GB497620 A GB 497620A GB 27382/37 A GB27382/37 A GB 27382/37A GB 2738237 A GB2738237 A GB 2738237A GB 497620 A GB497620 A GB 497620A
Authority
GB
United Kingdom
Prior art keywords
tube
coils
cathode
valve
ray
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
GB27382/37A
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.)
Loewe Opta GmbH
Original Assignee
Loewe Opta GmbH
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 Loewe Opta GmbH filed Critical Loewe Opta GmbH
Publication of GB497620A publication Critical patent/GB497620A/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
    • H01J29/70—Arrangements for deflecting ray or beam
    • H01J29/72—Arrangements for deflecting ray or beam along one straight line or along two perpendicular straight lines
    • H01J29/76—Deflecting by magnetic fields only
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03K—PULSE TECHNIQUE
    • H03K4/00—Generating pulses having essentially a finite slope or stepped portions
    • H03K4/06—Generating pulses having essentially a finite slope or stepped portions having triangular shape
    • H03K4/08—Generating pulses having essentially a finite slope or stepped portions having triangular shape having sawtooth shape
    • H03K4/10—Generating pulses having essentially a finite slope or stepped portions having triangular shape having sawtooth shape using as active elements vacuum tubes only
    • H03K4/26—Generating pulses having essentially a finite slope or stepped portions having triangular shape having sawtooth shape using as active elements vacuum tubes only in which a sawtooth current is produced through an inductor
    • H03K4/39—Generating pulses having essentially a finite slope or stepped portions having triangular shape having sawtooth shape using as active elements vacuum tubes only in which a sawtooth current is produced through an inductor using a tube operating as an amplifier
    • H03K4/43—Generating pulses having essentially a finite slope or stepped portions having triangular shape having sawtooth shape using as active elements vacuum tubes only in which a sawtooth current is produced through an inductor using a tube operating as an amplifier combined with means for generating the driving pulses
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
    • H01J2229/00—Details of cathode ray tubes or electron beam tubes
    • H01J2229/96—Circuit elements other than coils, reactors or the like, associated with the tube
    • H01J2229/964—Circuit elements other than coils, reactors or the like, associated with the tube associated with the deflection system

Abstract

497,620. Valve generating circuits; cathode - ray tubes. RADIOAKT.-GES. D. S. LOEWE. Oct. 8, 1937, No. 27382. Convention date, Oct. 8, 1936. [Classes 39 (i) and 40 (v)] To produce waves of saw-tooth current in the deflecting coils of a cathode-ray tube, the output of a relaxation oscillator 9 is fed to a valve 1. through a network 11 which accentuates the higher harmonics of the relaxation oscillations relatively to the lower ones. The anode circuit of valve 1 comprises resistance 4 having a value which is large compared with that of coils 2a, 2b, and small compared with the internal resistance of the tube 1. To allow the coils 2a, 2b to act symmetrically on the tube 12, the coils are made equal and are connected in series. An iron yoke 13 surrounds the tube and the polepieces 14 enter the tube and extend as near as possible towards the cathode ray.
GB27382/37A 1936-10-08 1937-10-08 Device for magnetic deflection of a cathode ray Expired GB497620A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE497620X 1936-10-08

Publications (1)

Publication Number Publication Date
GB497620A true GB497620A (en) 1938-12-22

Family

ID=6545201

Family Applications (1)

Application Number Title Priority Date Filing Date
GB27382/37A Expired GB497620A (en) 1936-10-08 1937-10-08 Device for magnetic deflection of a cathode ray

Country Status (3)

Country Link
US (1) US2227021A (en)
FR (1) FR827593A (en)
GB (1) GB497620A (en)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2545018A (en) * 1941-10-28 1951-03-13 Emi Ltd Apparatus for generating electrical pulses
US2531830A (en) * 1944-08-16 1950-11-28 Albert R Simpson Voltage pulse generator
US2521762A (en) * 1945-12-19 1950-09-12 Standard Telephones Cables Ltd Saw-tooth oscillator
US2972115A (en) * 1957-10-29 1961-02-14 Nat Company Inc Molecular beam apparatus

Also Published As

Publication number Publication date
FR827593A (en) 1938-04-28
US2227021A (en) 1940-12-31

Similar Documents

Publication Publication Date Title
GB463253A (en) Improvements in or relating to circuit arrangements for cathode ray tube apparatus
GB526111A (en) Improvements in or relating to television transmitting or receiving systems
GB515947A (en) Improvements in or relating to cathode ray tube arrangements
GB521439A (en) Focussing magnets for cathode ray tubes
GB497620A (en) Device for magnetic deflection of a cathode ray
GB523476A (en) Arrangements for producing oscillations of a sawtooth wave form
GB524039A (en) Improvements in arrangements for generating electric currents of saw-tooth wave form
GB420876A (en) Braun tube
GB623017A (en) Improvements in circuits for the generation of saw-tooth oscillations and for the supply of high voltage
GB517597A (en) Improvements in or relating to deflecting means for use with cathode ray tubes
GB573587A (en) Improvements in electronic devices particularly for x-ray apparatus
GB403283A (en) Improvements in or relating to television apparatus, synchronising apparatus and thelike
GB493142A (en) Improvements in or relating to oscillation generators
GB218677A (en) Improvements in or relating to electron discharge tubes
GB425686A (en) Relaxation oscillation generator
GB425685A (en) Method of producing relaxation oscillations, more particularly for television purposes
GB634442A (en) Improvements in electromagnetic scanning circuits employing thermionic valves
GB532074A (en) Improvements in or relating to deflecting arrangements for use with cathode ray tubes and the like
GB643150A (en) Improvements relating to beam-deflecting circuits for cathode ray tubes
GB533301A (en) Improvements in or relating to magnetic deflecting systems for cathode ray tubes
GB798776A (en) Focussing arrangements for cathode ray tubes
GB474442A (en) Improvements in or relating to cathode ray tubes and apparatus embodying the same
GB537119A (en) Improvements in or relating to time base circuits for cathode ray tubes
GB429251A (en) Method of producing braum tubes
GB495757A (en) Improvements in or relating to cathode ray tubes