GB452927A - Improvements in or relating to electrical relay and oscillator systems - Google Patents

Improvements in or relating to electrical relay and oscillator systems

Info

Publication number
GB452927A
GB452927A GB6560/35A GB656035A GB452927A GB 452927 A GB452927 A GB 452927A GB 6560/35 A GB6560/35 A GB 6560/35A GB 656035 A GB656035 A GB 656035A GB 452927 A GB452927 A GB 452927A
Authority
GB
United Kingdom
Prior art keywords
valve
grid
screen
delay
network
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
GB6560/35A
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
Publication of GB452927A publication Critical patent/GB452927A/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

Landscapes

  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Particle Accelerators (AREA)
  • Electrotherapy Devices (AREA)

Abstract

452,927. Valve circuits. MARCONI'S WIRELESS TELEGRAPH CO., Ltd., Electra House, Victoria Embankment, London.-(Assignees of Koch, W. R. ; 220, Cooper Street, Camden, New Jersey, U.S.A.) March 1, 1935, No. 6560. Convention date, March 1, 1934. [Class 40 (v)] A thermionic relay or oscillator system comprising a pair of pentodes, the anode of each being directly connected to the screen grid of the other, is characterized by a linkage time-delay network associated with the control grid of one of the valves. In Fig. 1, input or control potentials are applied to terminals 56, the control grid 40 of valve 30 being connected over condenser 53 to the screen grid 39 of the same valve. Condenser 53 and resistance 42 constitute the timedelay network. The control grids are differently biassed, source 55 providing higher negative bias than source 54. The output may be applied to a relay 46 as shown. Impulses applied to input 56 cause the relay to pass through a complete cycle, the period of which is dependent on the network 42, 53 ; a negative impulse causes the plate current of valve 31 to decrease to zero, the current of valve 30 increasing to a maximum ; the conditions revert to normal after the time-delay. If the delay network is connected to the control grid with the smaller negative bias, the arrangement constitutes a multivibrator (as shown in Fig. 2). The delay network may be connected in the lead joining the anode of the highly biassed valve and the screen-grid of the other, Fig. 3 (not shown.) ; or separate time-delay networks may be provided between the control grid of each valve and the cathode of the partner valve, the anodes and screen grids being crossconnected as in Fig. 2, (Fig. 4 not shown). The oscillator output may be taken from any of the terminal pairs 58, 59, 60, 61, Fig. 2. With this type of oscillator, the oscillations in the low-bias valve have a rectangular wave-form while those in the partner valve are substantially saw-toothed. The Specification as open to inspection under Sect. 91 describes a D.C. amplifier arrangement comprising two screen grid pentodes, the anode of the first valve being directly connected to the screen grid of the second. This subjectmatter does not appear in the Specification as accepted.
GB6560/35A 1934-03-01 1935-03-01 Improvements in or relating to electrical relay and oscillator systems Expired GB452927A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US713621A US2050059A (en) 1934-03-01 1934-03-01 Relay system

Publications (1)

Publication Number Publication Date
GB452927A true GB452927A (en) 1936-09-01

Family

ID=24866830

Family Applications (1)

Application Number Title Priority Date Filing Date
GB6560/35A Expired GB452927A (en) 1934-03-01 1935-03-01 Improvements in or relating to electrical relay and oscillator systems

Country Status (2)

Country Link
US (1) US2050059A (en)
GB (1) GB452927A (en)

Families Citing this family (32)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2489269A (en) * 1940-05-15 1949-11-29 Claud E Cleeton Means for suppressing super numerary pulses
US2551103A (en) * 1941-05-23 1951-05-01 Ibm Electronic trigger
US2431832A (en) * 1942-07-30 1947-12-02 Rca Corp Single pulse relay
US2416304A (en) * 1942-09-05 1947-02-25 Standard Telephones Cables Ltd Trigger circuit
US2513954A (en) * 1942-09-28 1950-07-04 Gen Electric Synchronized pulse generator
US2416158A (en) * 1942-10-09 1947-02-18 Gen Electric Frequency dividing apparatus
US2422698A (en) * 1942-11-05 1947-06-24 Bell Telephone Labor Inc Time measuring system
US2441957A (en) * 1942-11-13 1948-05-25 Standard Telephones Cables Ltd Demodulator for frequency modulated waves
US2507211A (en) * 1942-12-24 1950-05-09 Gen Electric Pulse receiver circuit
US2441579A (en) * 1943-01-06 1948-05-18 Sperry Corp Stabilized multivibrator
US2458771A (en) * 1943-03-15 1949-01-11 Univ Michigan Supersonic reflectoscope
US2416517A (en) * 1943-04-08 1947-02-25 Republic Steel Corp Method and apparatus for determining phase shift
US2430547A (en) * 1943-10-28 1947-11-11 Rca Corp Start-stop electronic regenerative telegraph signal repeater
US2430725A (en) * 1943-11-12 1947-11-11 Rca Corp Triggering system for obtaining a sharp-sided output pulse shorter than the input pulse
US2668240A (en) * 1943-11-24 1954-02-02 Jr George A Brettell Noninverting oscillator
US2436482A (en) * 1943-12-02 1948-02-24 Rca Corp Electronic trigger circuit
US2467208A (en) * 1943-12-30 1949-04-12 Gen Electric Pulse echo system
US2479954A (en) * 1944-04-29 1949-08-23 Philco Corp Pulse delay system
US2497965A (en) * 1944-05-16 1950-02-21 Rca Corp Electronic keying circuit with one negative and one positive voltage output
US2463073A (en) * 1945-01-26 1949-03-01 Rca Corp Oscillator
US2495690A (en) * 1945-01-27 1950-01-31 Philco Corp Echo-triggered radar system
US2520907A (en) * 1945-03-05 1950-09-05 Cantor Gilbert Amplifier
US2447799A (en) * 1945-04-05 1948-08-24 Ibm Sequential electronic commutator with supplementary grid control
US2568533A (en) * 1945-04-17 1951-09-18 Rca Corp Electronic circuit arrangement
US2577444A (en) * 1945-04-28 1951-12-04 Rca Corp Pulse regenerator circuit
US2526003A (en) * 1945-05-12 1950-10-17 Rca Corp Polar locking circuit
CH243220A (en) * 1945-06-02 1946-06-30 Patelhold Patentverwertung Multivibrator circuit for generating square-wave pulse voltages.
US2459852A (en) * 1945-06-08 1949-01-25 Gen Electric Trigger network
US2596956A (en) * 1946-06-10 1952-05-13 Atomic Energy Commission Electronic relay circuit
US2575203A (en) * 1947-02-14 1951-11-13 James O Coit Jr Film advancing mechanism in a soundpicture strip projector
US2828450A (en) * 1955-05-09 1958-03-25 Honeywell Regulator Co Transistor controller
US3222551A (en) * 1961-09-01 1965-12-07 Leeds & Northrup Co System for cyclically producing control impulses of predetermined length and frequency

Also Published As

Publication number Publication date
US2050059A (en) 1936-08-04

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