GB487321A - Improvements in or relating to thermionic valve circuits - Google Patents

Improvements in or relating to thermionic valve circuits

Info

Publication number
GB487321A
GB487321A GB34161/36A GB3416136A GB487321A GB 487321 A GB487321 A GB 487321A GB 34161/36 A GB34161/36 A GB 34161/36A GB 3416136 A GB3416136 A GB 3416136A GB 487321 A GB487321 A GB 487321A
Authority
GB
United Kingdom
Prior art keywords
valve
condenser
potential
cathode
grid
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
GB34161/36A
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 GB34161/36A priority Critical patent/GB487321A/en
Priority to US178640A priority patent/US2185363A/en
Publication of GB487321A publication Critical patent/GB487321A/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
    • H03K4/14—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 using two tubes so coupled that the input of each one is derived from the output of the other, e.g. multivibrator
    • 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)
  • Stabilization Of Oscillater, Synchronisation, Frequency Synthesizers (AREA)
  • Inductance-Capacitance Distribution Constants And Capacitance-Resistance Oscillators (AREA)
  • Lasers (AREA)

Abstract

487,321. Valve generating circuits. WHITE, E. L. C. Dec. 12, 1936, No. 34161. [Class 40 (v)] A relaxation oscillator comprises a condenser 8 adapted to be charged, or discharged, at a desired rate whilst an associated valve 1 is nonconducting, the condenser charge restoring instantaneously to its normal value through the grid-cathode space of the valve 1 when flow through a further valve 2 ceases, the two valves being inter-connected by a common impedance 6 in their cathode leads. As shown in Fig. 1, the condenser 8 charges over resistance 9. The valve 2 is conducting so that the cathode 11 of valve 1 is at potential V2, Fig. 4, due to the anode current of valve 2 flowing through resistance 6. As the condenser charges the effective bias of grid 10 becomes less negative so that valve 1 begins to pass anode current. This results in a fall in the potential of anode 12 and this is applied to grid 13 so that the anode current of valve 2 is reduced. This decreases the potential of cathode 11 so that the anode current of valve 1 increases further, the action being cumulative until valve 2 is biassed to cut-off. The potential of cathode 11 falls rapidly as indicated by 26 /24, Fig. 4, and the potential G of the grid 10 follows the cathode potential down to value V1, the condenser 8 discharging over the gridcathode space. The condenser 5 charges through resistance 7 and the anode-cathode space of valve 1, the potential of grid 13 starts rising again, valve 2 begins to conduct, valve 1 is cut off and the cycle repeats. The condenser 8 may be connected in parallel with resistance 9, in which case it charges rapidly and discharges at a desired rate. An alternative arrangement using a pentode is described in which resistance 3 and condenser 5 are connected to the screen grid and the output is taken from the anode. The invention may be used for frequency division or multiplication and for counting impulses, controlling pulses of either positive or negative sense being applied to a suitable point in the circuit.
GB34161/36A 1936-12-12 1936-12-12 Improvements in or relating to thermionic valve circuits Expired GB487321A (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
GB34161/36A GB487321A (en) 1936-12-12 1936-12-12 Improvements in or relating to thermionic valve circuits
US178640A US2185363A (en) 1936-12-12 1937-12-08 Thermionic valve circuits

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB34161/36A GB487321A (en) 1936-12-12 1936-12-12 Improvements in or relating to thermionic valve circuits

Publications (1)

Publication Number Publication Date
GB487321A true GB487321A (en) 1938-06-13

Family

ID=10362149

Family Applications (1)

Application Number Title Priority Date Filing Date
GB34161/36A Expired GB487321A (en) 1936-12-12 1936-12-12 Improvements in or relating to thermionic valve circuits

Country Status (2)

Country Link
US (1) US2185363A (en)
GB (1) GB487321A (en)

Families Citing this family (24)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2513954A (en) * 1942-09-28 1950-07-04 Gen Electric Synchronized pulse generator
US2416201A (en) * 1942-10-22 1947-02-18 Westinghouse Electric Corp Multivibrator circuits
GB577710A (en) * 1944-03-08 1946-05-29 Edward Arthur Newman Improvements in or relating to electric impulse generators
US2432292A (en) * 1943-05-29 1947-12-09 Rca Corp Electronic counter circuit
US2540087A (en) * 1943-07-29 1951-02-06 Donald J Barchok Method and means for identifying aircraft
US2754417A (en) * 1943-11-24 1956-07-10 Jr George A Brettell Non-inverting amplifier relay system
US2562660A (en) * 1943-12-04 1951-07-31 Chance Britton Pulse generating circuit
US2489824A (en) * 1943-12-24 1949-11-29 Rca Corp Square wave generator with impulse counter timing control for frequency division
US2461120A (en) * 1944-11-02 1949-02-08 Hazeltine Research Inc Signal generator
US2568533A (en) * 1945-04-17 1951-09-18 Rca Corp Electronic circuit arrangement
US2515271A (en) * 1945-04-28 1950-07-18 Jr Carl H Smith Multivibrator count down circuits
US2526000A (en) * 1945-05-26 1950-10-17 Rca Corp Frequency divider
US2582190A (en) * 1945-07-06 1952-01-08 Dale R Corson Saw-tooth voltage generator
US2747094A (en) * 1945-12-10 1956-05-22 Robert M Walker Dividing circuit
US2729765A (en) * 1946-01-08 1956-01-03 Norman B Saunders Range indicator for scanning echo ranging systems
US2578557A (en) * 1946-01-25 1951-12-11 Rca Corp Electric timing device
US2573150A (en) * 1946-02-28 1951-10-30 Bell Telephone Labor Inc Frequency divider
US2789217A (en) * 1946-02-28 1957-04-16 Bell Telephone Labor Inc Frequency dividing electrical circuit
BE488279A (en) * 1948-04-06
US2648004A (en) * 1948-05-12 1953-08-04 Westinghouse Electric Corp Multivibrator
US2552303A (en) * 1948-11-29 1951-05-08 Rca Corp Sweep circuits
US2536853A (en) * 1949-03-25 1951-01-02 Philco Corp Saw-tooth current generator
US2792498A (en) * 1953-08-21 1957-05-14 Rca Corp Stabilized two-stage oscillators
US3067941A (en) * 1956-10-06 1962-12-11 Electricite De France Apparatus for measuring the product of at least two factors and in particular for counting the consumption of electrical energy

Also Published As

Publication number Publication date
US2185363A (en) 1940-01-02

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