GB590484A - Thermionic valve delay circuits - Google Patents

Thermionic valve delay circuits

Info

Publication number
GB590484A
GB590484A GB20198/44A GB2019844A GB590484A GB 590484 A GB590484 A GB 590484A GB 20198/44 A GB20198/44 A GB 20198/44A GB 2019844 A GB2019844 A GB 2019844A GB 590484 A GB590484 A GB 590484A
Authority
GB
United Kingdom
Prior art keywords
pulse
saw
tooth
wave
valve
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
GB20198/44A
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
Publication of GB590484A publication Critical patent/GB590484A/en
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03K—PULSE TECHNIQUE
    • H03K5/00—Manipulating of pulses not covered by one of the other main groups of this subclass
    • H03K5/13—Arrangements having a single output and transforming input signals into pulses delivered at desired time intervals
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01S—RADIO DIRECTION-FINDING; RADIO NAVIGATION; DETERMINING DISTANCE OR VELOCITY BY USE OF RADIO WAVES; LOCATING OR PRESENCE-DETECTING BY USE OF THE REFLECTION OR RERADIATION OF RADIO WAVES; ANALOGOUS ARRANGEMENTS USING OTHER WAVES
    • G01S7/00—Details of systems according to groups G01S13/00, G01S15/00, G01S17/00
    • G01S7/02—Details of systems according to groups G01S13/00, G01S15/00, G01S17/00 of systems according to group G01S13/00
    • G01S7/28—Details of pulse systems
    • G01S7/282—Transmitters

Landscapes

  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • General Physics & Mathematics (AREA)
  • Radar, Positioning & Navigation (AREA)
  • Remote Sensing (AREA)
  • Nonlinear Science (AREA)
  • Amplifiers (AREA)
  • Manipulation Of Pulses (AREA)

Abstract

590,484. Pulse delaying circuits. STANDARD TELEPHONES & CABLES, Ltd. Oct. 18, 1944, No. 20198. Convention. date, March 20, 1942. [Class 40 (v)] Each pulse of a train is applied to a saw tooth generator, the resulting saw-tooth wave being limited at a specified value by an amplitude limiter, a corresponding rectangular waveform being derived from the output which. after differentiation, provides pulses corresponding to the initiation of the saw-tooth and the moment at which the saw-tooth reaches the specified value. Input pulses, fed to valve T1, are applied as positive pulses to the grid of valve T2 to discharge condensers 18, 19 which subsequently charge over resistance 17 to generate a saw-tooth when the pulse terminates. The switch 16 is placed in the lower or upper position according to whether the input pulses are of positive or negative polarity. The saw-tooth wave is fed to an over-biassed valve T3 to develop a positive-going rectangular wave on the cathode which is differentiated over condenser-resistance combination 22, 23 producing a delayed positive pulse and a negative pulse coincident with the input pulse. These pulses are fed to over-biassed valve T4 to suppress the negative pulse, the delayed positive pulse being amplified and appearing at the cathode or anode load with the desired polarity. In a modification, Fig. 3 (not shown), the saw-tooth wave is fed to a biassed diode which truncates the wave, the output wave being differentiated to produce a sharp negative pulse followed by a positive-going longer portion. After amplification in an over-biassed valve, the resulting negative-going rectangular wave is differentiated to feed the output valve.
GB20198/44A 1942-03-20 1944-10-18 Thermionic valve delay circuits Expired GB590484A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US435498A US2419546A (en) 1942-03-20 1942-03-20 Delay circuit

Publications (1)

Publication Number Publication Date
GB590484A true GB590484A (en) 1947-07-18

Family

ID=23728648

Family Applications (1)

Application Number Title Priority Date Filing Date
GB20198/44A Expired GB590484A (en) 1942-03-20 1944-10-18 Thermionic valve delay circuits

Country Status (4)

Country Link
US (1) US2419546A (en)
BE (1) BE470448A (en)
FR (1) FR938708A (en)
GB (1) GB590484A (en)

Families Citing this family (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
NL82611C (en) * 1939-12-13
US2537589A (en) * 1945-12-15 1951-01-09 Rca Corp Delay circuit for rectangular waves
US3316490A (en) * 1945-12-28 1967-04-25 Thomas F Jones Variable time delay circuit for producing pulses of predetermined width or pulses after a predetermined interval
US2786197A (en) * 1946-03-29 1957-03-19 Sperry Rand Corp Ranging system
US2613253A (en) * 1946-12-07 1952-10-07 Electronic Res And Mfg Corp Electrical control
US2605360A (en) * 1947-03-10 1952-07-29 Rca Corp Time division multiplex system utilizing a step-wave generator in the distributor circuit
US2653247A (en) * 1948-05-08 1953-09-22 Westinghouse Electric Corp X-ray thickness gauge
US2580941A (en) * 1949-02-18 1952-01-01 Rca Corp Polarity-switching output circuit for wide-band video amplifiers
US3012101A (en) * 1952-01-28 1961-12-05 Roy R Newsom Electronic switches and circuits

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
NL47251C (en) * 1935-02-28
US2086918A (en) * 1935-08-22 1937-07-13 Rca Corp Method of frequency or phase modulation
US2118626A (en) * 1936-01-28 1938-05-24 Rca Corp Method and apparatus for delaying electrical impulses
NL91748C (en) * 1938-02-16

Also Published As

Publication number Publication date
FR938708A (en) 1948-10-22
US2419546A (en) 1947-04-29
BE470448A (en)

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