GB478511A - Improvements in or relating to thermionic valve oscillatory circuits - Google Patents

Improvements in or relating to thermionic valve oscillatory circuits

Info

Publication number
GB478511A
GB478511A GB19814/36A GB1981436A GB478511A GB 478511 A GB478511 A GB 478511A GB 19814/36 A GB19814/36 A GB 19814/36A GB 1981436 A GB1981436 A GB 1981436A GB 478511 A GB478511 A GB 478511A
Authority
GB
United Kingdom
Prior art keywords
valve
condenser
resistance
oscillator
resistances
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
GB19814/36A
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.)
Individual
Original Assignee
Individual
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 Individual filed Critical Individual
Priority to GB19814/36A priority Critical patent/GB478511A/en
Priority to US152311A priority patent/US2233596A/en
Publication of GB478511A publication Critical patent/GB478511A/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
    • H03K4/16—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 using a single tube with positive feedback through transformer, e.g. blocking oscillator

Landscapes

  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • X-Ray Techniques (AREA)
  • Physical Or Chemical Processes And Apparatus (AREA)

Abstract

478,511. Thermionic valve circuits. FAUDELL, C. L. July 17, 1936, No. 19814. [Class 40 (v)] A valve circuit for generating saw - tooth voltages consists of an oscillator which controls a second valve ; equal potentials of opposite phase being generated across a circuit element or elements associated with both valves. Valve 1 acts as a blocking oscillator, condenser 5 and resistance 6 controlling the frequency of the saw-tooth voltages produced across condenser 2 which charges through resistance 3 and discharges during oscillation of the valve. Synchronizing signals are applied at terminal 7. The grid of the second valve 10 is coupled to the first by transformer windings 4, 8, 9, and the time constant of the combination 11, 12 is made greater than that of resistance 6 and condenser 5. The second valve charges condenser 14, normally discharging slowly through resistance 13, at the same time that condenser 2 is discharged. Terminals 15, 16 are connected to the deflecting plates of a cathode-ray tube. In modifications, resistances 3, 13 may be replaced by chokes, a single condenser connected between the upper ends of resistances 3, 13 may be used, and also the anode of valve 10 may be connected directly to the anode of valve 1. The invention is not restricted to blocking oscillators and other types of oscillator may be employed. Specifications 235,254, [Class 37], and 402,629 are referred to.
GB19814/36A 1936-07-17 1936-07-17 Improvements in or relating to thermionic valve oscillatory circuits Expired GB478511A (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
GB19814/36A GB478511A (en) 1936-07-17 1936-07-17 Improvements in or relating to thermionic valve oscillatory circuits
US152311A US2233596A (en) 1936-07-17 1937-07-07 Thermionic valve oscillatory circuits

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB19814/36A GB478511A (en) 1936-07-17 1936-07-17 Improvements in or relating to thermionic valve oscillatory circuits

Publications (1)

Publication Number Publication Date
GB478511A true GB478511A (en) 1938-01-17

Family

ID=10135673

Family Applications (1)

Application Number Title Priority Date Filing Date
GB19814/36A Expired GB478511A (en) 1936-07-17 1936-07-17 Improvements in or relating to thermionic valve oscillatory circuits

Country Status (2)

Country Link
US (1) US2233596A (en)
GB (1) GB478511A (en)

Families Citing this family (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2636119A (en) * 1945-07-09 1953-04-21 Gordon D Forbes Pulse control circuit
US2622200A (en) * 1945-09-04 1952-12-16 Herman S Pierce Therapeutic device
US2562925A (en) * 1946-01-15 1951-08-07 Leon J Lader Sweep generator
US2708241A (en) * 1946-01-30 1955-05-10 Bess Leon Wide gate generator
US2509792A (en) * 1946-05-17 1950-05-30 Raytheon Mfg Co Blocking oscillator trigger circuit
US2558343A (en) * 1947-08-29 1951-06-26 Bendix Aviat Corp Oscillation generating apparatus
US2611872A (en) * 1949-03-31 1952-09-23 Rca Corp Sawtooth wave generator
US2849606A (en) * 1953-03-25 1958-08-26 Sydney R Parker Amplitude comparison circuit
US2961612A (en) * 1957-06-17 1960-11-22 Gen Electric Saw tooth wave form generator

Also Published As

Publication number Publication date
US2233596A (en) 1941-03-04

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