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GB471185A - Improvements in or relating to arrangements for controlling a cathode ray tube - Google Patents

Improvements in or relating to arrangements for controlling a cathode ray tube

Info

Publication number
GB471185A
GB471185A GB6059/36A GB605936A GB471185A GB 471185 A GB471185 A GB 471185A GB 6059/36 A GB6059/36 A GB 6059/36A GB 605936 A GB605936 A GB 605936A GB 471185 A GB471185 A GB 471185A
Authority
GB
United Kingdom
Prior art keywords
valve
sinusoidal
condenser
oscillator
oscillations
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
GB6059/36A
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.)
STC PLC
Original Assignee
Standard Telephone and Cables PLC
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 Standard Telephone and Cables PLC filed Critical Standard Telephone and Cables PLC
Priority to GB6059/36A priority Critical patent/GB471185A/en
Priority to US126595A priority patent/US2215776A/en
Publication of GB471185A publication Critical patent/GB471185A/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
    • H03K4/12—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

Landscapes

  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Inductance-Capacitance Distribution Constants And Capacitance-Resistance Oscillators (AREA)
  • Details Of Television Scanning (AREA)

Abstract

471,185. Valve oscillators. STANDARD TELEPHONES & CABLES, Ltd., and BARNARD, R. M. Feb. 28, 1936, No. 6059. [Class 40 (v)] The discharging valve of a relaxation oscillator is tripped by rectified sinusoidal oscillations applied to its grid in negative phase. The condenser C2, Fig. 1, is charged over resistance R4 and condenser Cl and discharged through the valve V3. An oscillator V1 supplies sinusoidal oscillations to a rectifier V2, and the rectified oscillations are applied to the two grids of V3 whose bias is represented at XX<1>, Fig. 3, and which ceases to conduct at an input voltage AA<1>. The valve V3 is therefore conducting for a brief period in each half-cycle of the sinusoidal oscillation. The conducting period may be adjusted by varying the bias level XX<1>. Synchronizing signals may be applied at PY to control the sinusoidal oscillator VI. In a modification, Fig. 2 (not shown), the condenser C2 may be chosen from a plurality, and the valve V3 is replaced by a back-coupled triode valve.
GB6059/36A 1936-02-28 1936-02-28 Improvements in or relating to arrangements for controlling a cathode ray tube Expired GB471185A (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
GB6059/36A GB471185A (en) 1936-02-28 1936-02-28 Improvements in or relating to arrangements for controlling a cathode ray tube
US126595A US2215776A (en) 1936-02-28 1937-02-19 Time base circuit for cathode ray tubes

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB6059/36A GB471185A (en) 1936-02-28 1936-02-28 Improvements in or relating to arrangements for controlling a cathode ray tube

Publications (1)

Publication Number Publication Date
GB471185A true GB471185A (en) 1937-08-30

Family

ID=9807659

Family Applications (1)

Application Number Title Priority Date Filing Date
GB6059/36A Expired GB471185A (en) 1936-02-28 1936-02-28 Improvements in or relating to arrangements for controlling a cathode ray tube

Country Status (2)

Country Link
US (1) US2215776A (en)
GB (1) GB471185A (en)

Families Citing this family (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
NL137118C (en) * 1942-08-24
US2448718A (en) * 1943-01-14 1948-09-07 Genevoise Instr Physique Method of and device for producing pulses at the maximum or minimum of an electric impulse
US2435751A (en) * 1943-09-23 1948-02-10 Morrison Montford Frequency and phase correction in oscillators
US2483431A (en) * 1944-05-10 1949-10-04 Sperry Corp Blocking oscillator
US2508620A (en) * 1944-11-09 1950-05-23 Rca Corp Multiplex pulse communication system
US2431324A (en) * 1944-12-27 1947-11-25 Standard Telephones Cables Ltd Electrical wave analyzing circuit
US2463969A (en) * 1945-03-17 1949-03-08 Rca Corp Cathode-ray deflection circuit
BE477944A (en) * 1946-09-16
US2678387A (en) * 1950-04-11 1954-05-11 Rca Corp Tone converter
US2965766A (en) * 1955-04-19 1960-12-20 Westinghouse Electric Corp Voltage to pulse-width conversion device

Also Published As

Publication number Publication date
US2215776A (en) 1940-09-24

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