GB514940A - Improvements in or relating to multivibrator circuit arrangements - Google Patents

Improvements in or relating to multivibrator circuit arrangements

Info

Publication number
GB514940A
GB514940A GB706738A GB706738A GB514940A GB 514940 A GB514940 A GB 514940A GB 706738 A GB706738 A GB 706738A GB 706738 A GB706738 A GB 706738A GB 514940 A GB514940 A GB 514940A
Authority
GB
United Kingdom
Prior art keywords
pulses
duration
terminal
potential
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
GB706738A
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 GB706738A priority Critical patent/GB514940A/en
Priority to FR850973D priority patent/FR850973A/en
Publication of GB514940A publication Critical patent/GB514940A/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
    • H03K3/12—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 bistable

Landscapes

  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Television Signal Processing For Recording (AREA)

Abstract

514,940. Valve generating circuits. WHITE, E. L. C. March 7. 1938, No. 7067. [Classes 40 (iii) and 40 (v)] A multivibrator is arranged to give trains of impulses of different duration under control of two sets of control pulses. Negative pulses of duration G, Fig. 2, are applied to terminal A and so are fed to the grid of valve V2. Under control of these pulses, impulses of duration F are produced at terminal C, the duration being determined by the valves of condenser C2 and resistance R2 and by the potential at D. The potential at D is varied by a second series of control pulses B1, Fig. 2, applied at terminal B so that for the duration of these pulses the output pulses of the multivibrator have a duration H, the output waveform being of the form shown at C1 in Fig. 2. The mean potential at point D can be adjusted at P. Specifications 455,858, 456,840 and 470,495 are referred to. The invention can be used for the mixing and diffusing of line and frame synchronising pulses in television. Reference has been directed by the Comptroller to Specification 499,755.
GB706738A 1938-03-07 1938-03-07 Improvements in or relating to multivibrator circuit arrangements Expired GB514940A (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
GB706738A GB514940A (en) 1938-03-07 1938-03-07 Improvements in or relating to multivibrator circuit arrangements
FR850973D FR850973A (en) 1938-03-07 1939-02-28 Improvements to multivibrator circuits

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB706738A GB514940A (en) 1938-03-07 1938-03-07 Improvements in or relating to multivibrator circuit arrangements

Publications (1)

Publication Number Publication Date
GB514940A true GB514940A (en) 1939-11-22

Family

ID=9825977

Family Applications (1)

Application Number Title Priority Date Filing Date
GB706738A Expired GB514940A (en) 1938-03-07 1938-03-07 Improvements in or relating to multivibrator circuit arrangements

Country Status (2)

Country Link
FR (1) FR850973A (en)
GB (1) GB514940A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2909675A (en) * 1955-05-10 1959-10-20 Bell Telephone Labor Inc Bistable frequency divider

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2909675A (en) * 1955-05-10 1959-10-20 Bell Telephone Labor Inc Bistable frequency divider

Also Published As

Publication number Publication date
FR850973A (en) 1939-12-30

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