GB644633A - Improvements in or relating to circuits for generating electrical impulses - Google Patents

Improvements in or relating to circuits for generating electrical impulses

Info

Publication number
GB644633A
GB644633A GB3358/47A GB335847A GB644633A GB 644633 A GB644633 A GB 644633A GB 3358/47 A GB3358/47 A GB 3358/47A GB 335847 A GB335847 A GB 335847A GB 644633 A GB644633 A GB 644633A
Authority
GB
United Kingdom
Prior art keywords
valve
pulse
circuit
coupling
multivibrator
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
GB3358/47A
Inventor
Eric Lawrence Casling White
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.)
EMI Ltd
Electrical and Musical Industries Ltd
Original Assignee
EMI Ltd
Electrical and Musical Industries 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 EMI Ltd, Electrical and Musical Industries Ltd filed Critical EMI Ltd
Priority to GB3358/47A priority Critical patent/GB644633A/en
Priority to US6049A priority patent/US2564824A/en
Publication of GB644633A publication Critical patent/GB644633A/en
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03K—PULSE TECHNIQUE
    • H03K3/00—Circuits for generating electric pulses; Monostable, bistable or multistable circuits
    • H03K3/02—Generators characterised by the type of circuit or by the means used for producing pulses
    • H03K3/04—Generators characterised by the type of circuit or by the means used for producing pulses by the use, as active elements, of vacuum tubes only, with positive feedback
    • H03K3/05—Generators characterised by the type of circuit or by the means used for producing pulses by the use, as active elements, of vacuum tubes only, with positive feedback using means other than a transformer for feedback
    • H03K3/06—Generators characterised by the type of circuit or by the means used for producing pulses by the use, as active elements, of vacuum tubes only, with positive feedback using means other than a transformer for feedback using at least two tubes so coupled that the input of one is derived from the output of another, e.g. multivibrator
    • H03K3/10—Generators characterised by the type of circuit or by the means used for producing pulses by the use, as active elements, of vacuum tubes only, with positive feedback using means other than a transformer for feedback using at least two tubes so coupled that the input of one is derived from the output of another, e.g. multivibrator monostable

Landscapes

  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Radar Systems Or Details Thereof (AREA)
  • Magnetically Actuated Valves (AREA)
  • Generation Of Surge Voltage And Current (AREA)

Abstract

644,633. Pulse generating circuits. ELECTRIC & MUSICAL INDUSTRIES, Ltd. Feb. 4, 1947, No. 3358. [Class 40 (vi)] A circuit for producing pulses of constant width comprises a cross-coupled pair of valves 1 and 2 which act as a multivibrator, or a flipflop, according to their individual biasses, the cathode coupling including a delay line 6, which determines the pulse width. In operation, an input pulse (or a random disturbance) reduces the cathode current of valve 1 and hence the bias on blocked valve 2 which conducts until the pulse has been reflected at the open remote end of the line and has returned to the input, where it causes conductivity, to be transferred from valve 2 to valve 1. The circuit then remains in this state until another input pulse reduces the anode current of valve 1, or until the capacitor 13 forming the other coupling has discharged sufficiently to allow valve 2 to conduct, if the D.C. bias applied to the valve is low enough, this being the case when the circuit acts as a multivibrator. Capacitor 13 may be replaced by a direct coupling. In a modification, Fig. 2 (not shown), the delay line has its remote end shorted, and is connected between earth and the cathodes of the valves which are connected together. Specification 578,690 is referred to.
GB3358/47A 1947-02-04 1947-02-04 Improvements in or relating to circuits for generating electrical impulses Expired GB644633A (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
GB3358/47A GB644633A (en) 1947-02-04 1947-02-04 Improvements in or relating to circuits for generating electrical impulses
US6049A US2564824A (en) 1947-02-04 1948-02-03 Circuits for generating electrical impulses

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB3358/47A GB644633A (en) 1947-02-04 1947-02-04 Improvements in or relating to circuits for generating electrical impulses

Publications (1)

Publication Number Publication Date
GB644633A true GB644633A (en) 1950-10-18

Family

ID=9756800

Family Applications (1)

Application Number Title Priority Date Filing Date
GB3358/47A Expired GB644633A (en) 1947-02-04 1947-02-04 Improvements in or relating to circuits for generating electrical impulses

Country Status (2)

Country Link
US (1) US2564824A (en)
GB (1) GB644633A (en)

Families Citing this family (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2623998A (en) * 1949-03-03 1952-12-30 Ericsson Telefon Ab L M Device for obtaining from a pulse another pulse of accurately predetermined duration
US2719226A (en) * 1951-06-04 1955-09-27 Remington Rand Inc Timed signal generator
US2689949A (en) * 1952-05-15 1954-09-21 Atomic Energy Commission Telementering system
US2843738A (en) * 1952-11-28 1958-07-15 Philips Corp Circuit arrangement for producing pulses
US2917625A (en) * 1954-03-12 1959-12-15 Bell Telephone Labor Inc Toggle circuit
US2958825A (en) * 1954-06-21 1960-11-01 Gen Electric Pulse detection apparatus
US3018958A (en) * 1956-08-31 1962-01-30 Ibm Very high frequency computing circuit
US2970763A (en) * 1957-02-28 1961-02-07 Sperry Rand Corp Predetermined pulse selector
DE1129178B (en) * 1960-07-15 1962-05-10 Vakutronik Veb Circuit arrangement for generating electrical pulses
DE1166254B (en) * 1961-12-18 1964-03-26 Ibm Monostable transistor pulse generator with a delay chain

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
BE469511A (en) * 1941-07-08

Also Published As

Publication number Publication date
US2564824A (en) 1951-08-21

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