GB452017A - Improvements in or relating to electrical time circuit arrangements and oscillation generators - Google Patents

Improvements in or relating to electrical time circuit arrangements and oscillation generators

Info

Publication number
GB452017A
GB452017A GB4793/35A GB479335A GB452017A GB 452017 A GB452017 A GB 452017A GB 4793/35 A GB4793/35 A GB 4793/35A GB 479335 A GB479335 A GB 479335A GB 452017 A GB452017 A GB 452017A
Authority
GB
United Kingdom
Prior art keywords
valve
condenser
grid
resistance
discharge
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
GB4793/35A
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.)
BAE Systems Electronics Ltd
Original Assignee
Marconis Wireless Telegraph Co 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 Marconis Wireless Telegraph Co Ltd filed Critical Marconis Wireless Telegraph Co Ltd
Priority to GB4793/35A priority Critical patent/GB452017A/en
Priority to FR801066D priority patent/FR801066A/en
Priority to US62100A priority patent/US2155210A/en
Publication of GB452017A publication Critical patent/GB452017A/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)
  • Particle Accelerators (AREA)
  • Geophysics And Detection Of Objects (AREA)

Abstract

452,017. Valve circuits. MARCONI'S WIRELESS TELEGRAPH CO., Ltd., Electra House, Victoria Embankment, and YOUNG, A. J., 61, Galveston Road, Putney, both in London. Feb. 14, 1935, No. 4793. [Class 40 (v)] A valve employed for the sudden discharge or charge of a condenser in a relaxation oscillator, or for other high-speed non-mechanical switching, is associated with two other valves in such a way that when the first is conductive the other two are nonconductive and vice versa, the third valve being back-connected to control the first. As shown, the condenser 1 is charged in known manner through a screen-grid valve 4 from a voltage source connected across the terminals 2, 3, and is suddenly discharged through a resistance 11, and a triode valve 12. As the discharge starts, the plate of the valve 12 becomes less positive in voltage and this voltage change is transferred through a condenser 15 to the grid of the second valve 17. The current through this valve is thereby reduced. Its path includes the space between the screengrid and the cathode of the third valve 24, shunted by a high resistance 22 which may be omitted. The reduction of the screen-grid current of the pentode valve 24 causes a reduction of its plate current through the variable resistance 26, and thus increases the conductivity of the first valve 12, which has its grid connected to the plate of the third valve 24. Thus when the discharge of the condenser 1 has once started it is accelerated by the action of the valves 17, 24. The discharges may be synchronized by impulses applied to a grid of the pentode valve 24 through a condenser 31 and a tapped resistance 30. In a modification, Fig. 2, (not shown), the valve 12 is a tetrode with. its plate connected directly to the condenser 1, and with the resistance 11 in the circuit of its outer grid. In another arrangement, two triodes with grids connected are substituted for the valve 12, one serving to discharge the condenser directly, the other providing resistance-capacity coupling to the next valve 17, Fig. 3 (not shown).
GB4793/35A 1935-02-14 1935-02-14 Improvements in or relating to electrical time circuit arrangements and oscillation generators Expired GB452017A (en)

Priority Applications (3)

Application Number Priority Date Filing Date Title
GB4793/35A GB452017A (en) 1935-02-14 1935-02-14 Improvements in or relating to electrical time circuit arrangements and oscillation generators
FR801066D FR801066A (en) 1935-02-14 1936-01-22 Improvements to time dividing electrical systems and oscillation generators
US62100A US2155210A (en) 1935-02-14 1936-02-03 Electrical time circuit arrangement and oscillation generator

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB4793/35A GB452017A (en) 1935-02-14 1935-02-14 Improvements in or relating to electrical time circuit arrangements and oscillation generators

Publications (1)

Publication Number Publication Date
GB452017A true GB452017A (en) 1936-08-14

Family

ID=9783892

Family Applications (1)

Application Number Title Priority Date Filing Date
GB4793/35A Expired GB452017A (en) 1935-02-14 1935-02-14 Improvements in or relating to electrical time circuit arrangements and oscillation generators

Country Status (3)

Country Link
US (1) US2155210A (en)
FR (1) FR801066A (en)
GB (1) GB452017A (en)

Families Citing this family (19)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2416292A (en) * 1942-07-18 1947-02-25 Standard Telephones Cables Ltd Saw-tooth wave generation
US2442769A (en) * 1942-12-30 1948-06-08 Sperry Corp Electronic delay circuits
US2418826A (en) * 1943-01-22 1947-04-15 Bell Telephone Labor Inc Multivibrator circuit
GB579682A (en) * 1944-02-03 1946-08-13 Standard Telephones Cables Ltd Improvements in time base circuits for cathode ray tubes
US2452586A (en) * 1944-03-23 1948-11-02 Sperry Corp Phase shift circuits
GB635474A (en) * 1944-10-03 1950-04-12 Standard Telephones Cables Ltd Improvements in or relating to thermionic multivibrators for use in multi-channel electrical pulse communication systems
US2523763A (en) * 1945-01-30 1950-09-26 Gen Electric Sweep generator
US2568533A (en) * 1945-04-17 1951-09-18 Rca Corp Electronic circuit arrangement
US2469031A (en) * 1945-09-06 1949-05-03 Rca Corp Electronic counter circuit
US2597322A (en) * 1945-09-14 1952-05-20 Us Sec War Pulse generator circuit
US2605406A (en) * 1945-12-12 1952-07-29 Everhard H B Bartelink Multivibrator saw-tooth generator
US2564687A (en) * 1946-03-26 1951-08-21 John H Guenther Pulse time modulation
GB626136A (en) * 1946-09-27 1949-07-11 Standard Telephones Cables Ltd Improvements in or relating to time base circuits for oscillographs
US2627031A (en) * 1946-11-27 1953-01-27 Rca Corp Relaxation oscillator
US2624860A (en) * 1947-04-18 1953-01-06 William R Baker Arc hash analyzer by cathode-ray tube
US2721937A (en) * 1949-09-21 1955-10-25 Bell Telephone Labor Inc Relaxation oscillator
US2740043A (en) * 1952-03-03 1956-03-27 John E Williams Electronic linear sweep generator
US2767378A (en) * 1952-07-10 1956-10-16 Hass Zygmunt Konstanty Frequency modulation relaxation oscillator
US2784309A (en) * 1953-02-04 1957-03-05 Rca Corp Monostable multivibrator circuit

Also Published As

Publication number Publication date
US2155210A (en) 1939-04-18
FR801066A (en) 1936-07-27

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