GB665550A - Improvements in and relating to electric discharge devices - Google Patents

Improvements in and relating to electric discharge devices

Info

Publication number
GB665550A
GB665550A GB14497/48A GB1449748A GB665550A GB 665550 A GB665550 A GB 665550A GB 14497/48 A GB14497/48 A GB 14497/48A GB 1449748 A GB1449748 A GB 1449748A GB 665550 A GB665550 A GB 665550A
Authority
GB
United Kingdom
Prior art keywords
cathode
grid
anode
frequency
discharge device
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
GB14497/48A
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.)
British Thomson Houston Co Ltd
Original Assignee
British Thomson Houston 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 British Thomson Houston Co Ltd filed Critical British Thomson Houston Co Ltd
Publication of GB665550A publication Critical patent/GB665550A/en
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
    • H01J19/00—Details of vacuum tubes of the types covered by group H01J21/00
    • H01J19/78—One or more circuit elements structurally associated with the tube
    • H01J19/80—Structurally associated resonator having distributed inductance and capacitance
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03B—GENERATION OF OSCILLATIONS, DIRECTLY OR BY FREQUENCY-CHANGING, BY CIRCUITS EMPLOYING ACTIVE ELEMENTS WHICH OPERATE IN A NON-SWITCHING MANNER; GENERATION OF NOISE BY SUCH CIRCUITS
    • H03B9/00—Generation of oscillations using transit-time effects
    • H03B9/01—Generation of oscillations using transit-time effects using discharge tubes
    • H03B9/02—Generation of oscillations using transit-time effects using discharge tubes using a retarding-field tube

Landscapes

  • Lasers (AREA)

Abstract

665,550. Thermionic valves. BRITISH THOMSON-HOUSTON CO., Ltd. May 28, 1948 [May 29,1947], No. 14497/48. Class 39 (i). [Also in Group XL (c)] A high-frequency oscillator comprises an electrical discharge device having a cathode, grid, and anode, and means connecting the cathode and grid having substantially zero impedance at the oscillation frequency, and a resonant circuit tuned to this frequency and connected between the anode and the cathode grid unit. As shown, the discharge device comprises a cathode 10, grid 11 and anode 12. The grirl and cathode are connected for highfrequency current through an internal condenser 22 which offers substantiatly zero impedance at these frequencies. The resonant circuit linking the anode to the grid and cathode unit is a cavity resonator formed by tubes 25 and 26. Adjustment of the anode voltage by a movable contact 37 on a potentiometer varies the amplitude of oscillation obtained. Besides the output connections for high-frequency energy from the resonator, the only connections to the discharge device are direct current to heat the filament and impart fixed voltages to the electrodes. In a modification the anode may be replaced by a combination consisting of a grid backed by a reflecting electrode 39.
GB14497/48A 1947-05-29 1948-05-28 Improvements in and relating to electric discharge devices Expired GB665550A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US665550XA 1947-05-29 1947-05-29

Publications (1)

Publication Number Publication Date
GB665550A true GB665550A (en) 1952-01-23

Family

ID=22070238

Family Applications (1)

Application Number Title Priority Date Filing Date
GB14497/48A Expired GB665550A (en) 1947-05-29 1948-05-28 Improvements in and relating to electric discharge devices

Country Status (1)

Country Link
GB (1) GB665550A (en)

Similar Documents

Publication Publication Date Title
US2293151A (en) Resonant cavity device
US2342897A (en) Electron discharge device system
JPH0160920B2 (en)
US2561727A (en) Tuning of electrical resonators
US2462137A (en) Electron discharge device
US2267520A (en) Oscillation generator system
GB665550A (en) Improvements in and relating to electric discharge devices
US2315658A (en) Negative resistance device
US2492155A (en) Tuning system
GB628769A (en) Improvements in or relating to high frequency oscillation generators
US2432193A (en) Microwave oscillator
US2456422A (en) High-frequency oscillator
GB652240A (en) Improvements in or relating to circuit arrangements for use on ultra-high frequencies
US2113340A (en) Ultrahigh frequency oscillator
GB660191A (en) Improvements in or relating to frequency modulated oscillation generators
US2443908A (en) Ultra high frequency oscillator
GB639181A (en) Improvements in frequency modulating arrangements for ultra high frequency oscillators
US2252370A (en) Ultra high frequency oscillator
US2523122A (en) Generator of ultra high frequency oscillations
US2398502A (en) Oscillation generation
US2779895A (en) Cavity resonator device
US2486863A (en) Ultra high frequency signaltranslating stage
GB653249A (en) Improvements in or relating to circuits for amplifying or generating ultra-high-frequency electrical oscillations
US2756334A (en) High frequency circuits and oscillators
US2464984A (en) Semireentrant line oscillator for ultra high frequency, comprising an electron discharge device