GB438882A - Braun tubes and circuits therefor - Google Patents

Braun tubes and circuits therefor

Info

Publication number
GB438882A
GB438882A GB9247/34A GB924734A GB438882A GB 438882 A GB438882 A GB 438882A GB 9247/34 A GB9247/34 A GB 9247/34A GB 924734 A GB924734 A GB 924734A GB 438882 A GB438882 A GB 438882A
Authority
GB
United Kingdom
Prior art keywords
plate
anode
parts
voltages
scanning
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
GB9247/34A
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
Priority claimed from US717307A external-priority patent/US2077271A/en
Publication of GB438882A publication Critical patent/GB438882A/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
    • H01J29/80—Arrangements for controlling the ray or beam after passing the main deflection system, e.g. for post-acceleration or post-concentration, for colour switching
    • 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
    • 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
    • H01J29/52—Arrangements for controlling intensity of ray or beam, e.g. for modulation
    • 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
    • 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
    • H03K4/12—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 voltage is produced across a capacitor

Abstract

438,882. Television. RADIOAKT.- GES. D. S. LOEWE, 10, Wiesenweg, Steglitz, Berlin. March 24, 1934, No. 9247. Convention date, March 29, 1933. Addition to 432,209. [Classes 39 (i) and 40 (iii)] The middle plate of a 3-plate deflecting system of the Braun-tube, television arrangement described in the parent Specification is divided into two separate parts 5, 6 spaced for the passage of the ray 2. The parts 5, 6 may be at the same or different bias potentials, the ray leaving the deflecting system parallel to its direction of entry, or striking the centre of the screen, when no scanning voltages are applied. As shown, the parts 5, 6 are connected by a high resistance 7 arranged in the tube itself and are positively biassed relatively to the anode 1 and to the outer plates 3, 4, and scanning potentials of opposed phase are applied to the plate 4 and the part 6. Scanning voltages are amplified by a pentode 9 before application through a condenser 10 to the plate 4 and are reversed in phase by a pentode 13 before application through a condenser 14 to the part 6. The tapping point on the anode resistance 11 is adjusted so that the voltages on the plates 4, 6 are of equal amplitude and the pentodes are fed through a potentiometer 17 so that smoothing in the anode supply to the pentodes can be reduced or dispensed with. A system of this type is used for both line and image deflections and the transmitter is modulated more heavily for the line frequency since the image frequency permits of better amplification. Circuit details are specified. Specification 423,427 is referred to.
GB9247/34A 1932-10-25 1934-03-24 Braun tubes and circuits therefor Expired GB438882A (en)

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
DE432209X 1932-10-25
DER87622D DE715380C (en) 1932-10-25 1933-03-30 Braun tube with a three-part baffle system
US717307A US2077271A (en) 1932-10-25 1934-03-26 Braun tube
US108950A US2188580A (en) 1932-10-25 1936-11-03 Cathode ray deflecting circuit

Publications (1)

Publication Number Publication Date
GB438882A true GB438882A (en) 1935-11-25

Family

ID=32074453

Family Applications (2)

Application Number Title Priority Date Filing Date
GB29263/33A Expired GB432209A (en) 1932-10-25 1933-10-23 Braun tubes, and circuits therefor
GB9247/34A Expired GB438882A (en) 1932-10-25 1934-03-24 Braun tubes and circuits therefor

Family Applications Before (1)

Application Number Title Priority Date Filing Date
GB29263/33A Expired GB432209A (en) 1932-10-25 1933-10-23 Braun tubes, and circuits therefor

Country Status (5)

Country Link
US (2) US2083204A (en)
DE (1) DE715380C (en)
FR (2) FR763894A (en)
GB (2) GB432209A (en)
NL (1) NL44767C (en)

Families Citing this family (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE923686C (en) * 1935-11-13 1955-02-21 Interessengemeinschaft Fuer Ru Deflection systems for cathode ray tubes
DE756688C (en) * 1937-09-18 1954-01-25 Aeg Braun tubes, especially for measuring or television purposes, with two or more pairs of deflector plates rotated against one another
US2438709A (en) * 1942-08-06 1948-03-30 Hartford Nat Bank & Trust Co Thermionic tube having secondary electron emissive electrode with surface and form variations
US2460142A (en) * 1945-01-30 1949-01-25 Gen Electric Electronic calibrating means for indicating instruments in pulse echo systems
US2489330A (en) * 1947-01-20 1949-11-29 Farnsworth Res Corp Neutralized cathode-ray deflection tube
US2837691A (en) * 1955-08-24 1958-06-03 Kaiser Ind Corp Electronic device
US2911557A (en) * 1956-08-23 1959-11-03 Gen Lab Associates Inc Analogue computer
US2921227A (en) * 1957-05-23 1960-01-12 Mackay Donald Maccrimmon Cathode ray tubes and apparatus utilizing such tubes
WO2015112629A1 (en) * 2014-01-22 2015-07-30 Cameron Rig Solutions, Inc. Hydraulically deactivated clamp

Also Published As

Publication number Publication date
FR763894A (en) 1934-05-08
NL44767C (en)
US2083204A (en) 1937-06-08
US2188580A (en) 1940-01-30
DE715380C (en) 1941-12-22
FR44618E (en) 1935-03-19
GB432209A (en) 1935-07-23

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