GB464141A - Improvements in or relating to electric oscillation generators - Google Patents

Improvements in or relating to electric oscillation generators

Info

Publication number
GB464141A
GB464141A GB2979435A GB2979435A GB464141A GB 464141 A GB464141 A GB 464141A GB 2979435 A GB2979435 A GB 2979435A GB 2979435 A GB2979435 A GB 2979435A GB 464141 A GB464141 A GB 464141A
Authority
GB
United Kingdom
Prior art keywords
screen
condenser
valve
voltage
coils
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
GB2979435A
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.)
Ferranti International PLC
Original Assignee
Ferranti 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 Ferranti PLC filed Critical Ferranti PLC
Priority to GB2979435A priority Critical patent/GB464141A/en
Publication of GB464141A publication Critical patent/GB464141A/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
    • H03K4/26—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 current is produced through an inductor
    • H03K4/28—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 current is produced through an inductor using a tube operating as a switching device
    • H03K4/32—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 current is produced through an inductor using a tube operating as a switching device combined with means for generating the driving pulses
    • H03K4/34—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 current is produced through an inductor using a tube operating as a switching device combined with means for generating the driving pulses using a single tube with positive feedback through a transformer

Landscapes

  • Inductance-Capacitance Distribution Constants And Capacitance-Resistance Oscillators (AREA)
  • Oscillators With Electromechanical Resonators (AREA)

Abstract

464,141. Valve generating circuits. FERRANTI, Ltd., and WILSON, J. C. Oct. 29, 1935, No. 29794. [Class 40 (v)] In order to develop a current or voltage of true saw-tooth form through or across an inductance or resistance in the anode circuit of a screen-grid valve, the screen is coupled to the anode circuit. Voltage impulses produced by the back-coupled valve 1 are used to time the discharges of a condenser 17 through a triode valve 13, the condenser being slowly charged through a device 16. The defective saw-tooth voltage developed across the condenser 17 is applied to the control grid of a pentode valve 22, the anode circuit of which comprises a resistance 27 shunted by a condenser 30 and scanning-coils 31. The screen is supplied with direct current through a variable resistance 29, and the voltage across the coils 31 is applied to the screen through a variable condenser 32. Alternatively a coil in series with the coils 31 may be coupled inductively to the screen-grid circuit, Fig. 7 (not shown). When a saw-tooth voltage is required across the resistance 27, the coils 31 are omitted.
GB2979435A 1935-10-29 1935-10-29 Improvements in or relating to electric oscillation generators Expired GB464141A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB2979435A GB464141A (en) 1935-10-29 1935-10-29 Improvements in or relating to electric oscillation generators

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB2979435A GB464141A (en) 1935-10-29 1935-10-29 Improvements in or relating to electric oscillation generators

Publications (1)

Publication Number Publication Date
GB464141A true GB464141A (en) 1937-04-13

Family

ID=10297255

Family Applications (1)

Application Number Title Priority Date Filing Date
GB2979435A Expired GB464141A (en) 1935-10-29 1935-10-29 Improvements in or relating to electric oscillation generators

Country Status (1)

Country Link
GB (1) GB464141A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE756631C (en) * 1937-11-04 1952-02-28 Emi Ltd Self-locking vibration generator with a block capacitor and discharge resistor in the cathode feed line of the blocking oscillator tube
US2609507A (en) * 1949-05-11 1952-09-02 Motorola Inc Vertical deflection system
US2622200A (en) * 1945-09-04 1952-12-16 Herman S Pierce Therapeutic device

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE756631C (en) * 1937-11-04 1952-02-28 Emi Ltd Self-locking vibration generator with a block capacitor and discharge resistor in the cathode feed line of the blocking oscillator tube
US2622200A (en) * 1945-09-04 1952-12-16 Herman S Pierce Therapeutic device
US2609507A (en) * 1949-05-11 1952-09-02 Motorola Inc Vertical deflection system

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