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GB711170A - Improvements in or relating to time base scanning circuit arrangements for cathode ray tube deflection - Google Patents

Improvements in or relating to time base scanning circuit arrangements for cathode ray tube deflection

Info

Publication number
GB711170A
GB711170A GB9652A GB9652A GB711170A GB 711170 A GB711170 A GB 711170A GB 9652 A GB9652 A GB 9652A GB 9652 A GB9652 A GB 9652A GB 711170 A GB711170 A GB 711170A
Authority
GB
United Kingdom
Prior art keywords
control grid
anode
screen
valve
feedback circuit
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
GB9652A
Inventor
Anthony Norman Heightman
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.)
Marconis Wireless Telegraph Co Ltd
BAE Systems Electronics Ltd
Original Assignee
Marconis Wireless Telegraph Co Ltd
Marconi Co 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 Marconis Wireless Telegraph Co Ltd, Marconi Co Ltd filed Critical Marconis Wireless Telegraph Co Ltd
Priority to GB9652A priority Critical patent/GB711170A/en
Priority to DEM16752A priority patent/DE1001432B/en
Publication of GB711170A publication Critical patent/GB711170A/en
Expired legal-status Critical Current

Links

Classifications

    • 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
    • H03K4/28—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 a switching device
    • H03K4/32—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 a switching device combined with means for generating the driving pulses
    • H03K4/34—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 a switching device combined with means for generating the driving pulses using a single tube with positive feedback through a transformer

Landscapes

  • Details Of Television Scanning (AREA)

Abstract

711,170. Saw-tooth generating circuits. MARCONI'S WIRELESS TELEGRAPH CO., Ltd. Sept. 12, 1952 [Jan. 1, 1952], No. 96/52. Class 40 (6) In a saw tooth generator comprising a driving value 'feeding an inductive output circuit from which energy is recovered to boost the H.T. supply, a feedback circuit consisting of a resistor and a capacitor in series connected between the screen and control grid of the driving valve. The circuit shown comprises a square wave generator V3 feeding a driver valve having an output transformer connected to a damping valve and an H.T. boost capacitor. The driving valve is operated below the knee of the anode-volts, anode-current characteristic and in order to reduce the screen grid current a feedback circuit Cl, R1 is provided to reduce the control grid voltage during the early part of the scan to the lowest value consistent with this mode of operation. The square wave generator V3 may be a blocking oscillator having its anode and control grid or screen and control grid regeneratively coupled and the feedback circuit may alternatively be connected to the left-hand side of the blocking capacitor 3, Figs. 4 and 5 (not shown).
GB9652A 1952-01-01 1952-01-01 Improvements in or relating to time base scanning circuit arrangements for cathode ray tube deflection Expired GB711170A (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
GB9652A GB711170A (en) 1952-01-01 1952-01-01 Improvements in or relating to time base scanning circuit arrangements for cathode ray tube deflection
DEM16752A DE1001432B (en) 1952-01-01 1952-12-20 Generator to generate a saw-tooth-shaped current in an inductance

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB9652A GB711170A (en) 1952-01-01 1952-01-01 Improvements in or relating to time base scanning circuit arrangements for cathode ray tube deflection

Publications (1)

Publication Number Publication Date
GB711170A true GB711170A (en) 1954-06-23

Family

ID=9698330

Family Applications (1)

Application Number Title Priority Date Filing Date
GB9652A Expired GB711170A (en) 1952-01-01 1952-01-01 Improvements in or relating to time base scanning circuit arrangements for cathode ray tube deflection

Country Status (2)

Country Link
DE (1) DE1001432B (en)
GB (1) GB711170A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2923850A (en) * 1956-03-27 1960-02-02 Ibm Sweep circuit
US2961608A (en) * 1956-06-20 1960-11-22 Gen Electric High voltage sawtooth wave generator

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
NL62083C (en) * 1936-02-04
DE747344C (en) * 1939-05-27 1944-09-27 Telefunken Gmbh Circuit arrangement for generating saw-tooth-shaped current curves in a choke coil

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2923850A (en) * 1956-03-27 1960-02-02 Ibm Sweep circuit
US2961608A (en) * 1956-06-20 1960-11-22 Gen Electric High voltage sawtooth wave generator

Also Published As

Publication number Publication date
DE1001432B (en) 1957-01-24

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