GB582767A - Oscillation generator - Google Patents

Oscillation generator

Info

Publication number
GB582767A
GB582767A GB3108/44A GB310844A GB582767A GB 582767 A GB582767 A GB 582767A GB 3108/44 A GB3108/44 A GB 3108/44A GB 310844 A GB310844 A GB 310844A GB 582767 A GB582767 A GB 582767A
Authority
GB
United Kingdom
Prior art keywords
crystal
grid
shunted
feb
inductively coupled
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
GB3108/44A
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.)
Marconis Wireless Telegraph Co 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 GB582767A publication Critical patent/GB582767A/en
Expired legal-status Critical Current

Links

Classifications

    • 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
    • H03B5/00—Generation of oscillations using amplifier with regenerative feedback from output to input
    • H03B5/30—Generation of oscillations using amplifier with regenerative feedback from output to input with frequency-determining element being electromechanical resonator
    • H03B5/32—Generation of oscillations using amplifier with regenerative feedback from output to input with frequency-determining element being electromechanical resonator being a piezoelectric resonator
    • H03B5/34—Generation of oscillations using amplifier with regenerative feedback from output to input with frequency-determining element being electromechanical resonator being a piezoelectric resonator active element in amplifier being vacuum tube

Abstract

582,767. Valve generating circuits. MARCONI'S WIRELESS TELEGRAPH CO., Ltd. Feb. 18, 1944, No. 3108. Convention date, Feb. 20, 1943. [Class 40 (v)] In an oscillation generator comprising two valves, having anode, cathode, control grid and screen grid, in push-pull, tuned circuits connect the two anodes and two grids, respectively, the two being inductively coupled, a piezo-electric crystal having a narrow pass band being connected between two series connected impedances in the grid circuit so that oscillations occur only at crystal frequency. As shown in Fig. 1, the crystal 11 is connected between two tuning condensers 8 and 9, arranged for gang control, the resistance 14 being shunted across the crystal to prevent unwanted oscillation. In a modification, Fig. 2, not shown, the crystal is placed between two coupling coils, inductively coupled to the grid tank inductance coil 5, the oscillations damping resistance being shunted across the three elements.
GB3108/44A 1943-02-20 1944-02-18 Oscillation generator Expired GB582767A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US582767XA 1943-02-20 1943-02-20

Publications (1)

Publication Number Publication Date
GB582767A true GB582767A (en) 1946-11-27

Family

ID=22015793

Family Applications (1)

Application Number Title Priority Date Filing Date
GB3108/44A Expired GB582767A (en) 1943-02-20 1944-02-18 Oscillation generator

Country Status (1)

Country Link
GB (1) GB582767A (en)

Similar Documents

Publication Publication Date Title
GB534749A (en) Improvements in or relating to the frequency control of oscillators and particularly to television systems
GB601164A (en) Frequency control of oscillation generators
GB513679A (en) Improvements in or relating to electrical oscillation generators
GB490035A (en) Improvements in or relating to super-regenerative receivers
GB582767A (en) Oscillation generator
GB683939A (en) Improvements in or relating to superheterodyne radio-receivers
GB617647A (en) Improvements in or relating to frequency-changing circuits
GB625908A (en) Multi-range oscillator system
GB718959A (en) Improvements in or relating to circuit-arrangements for the frequency changing of high-frequency oscillations
GB413973A (en) Improvements in or relating to short wave thermionic valve transmitter arrangements
GB541149A (en) Improvements in or relating to electric oscillation generators
GB494884A (en) Improvements in or relating to electrical oscillation generators
GB693902A (en) Improvements in or relating to superheterodyne radio receivers
GB796075A (en) Improvements in or relating to heterodyne mixing circuits
GB586584A (en) Oscillation generator
GB313448A (en) Electrical oscillation circuits
GB258643A (en) Improvements in or relating to electrical means and systems for the transmission of sound
GB160140A (en) Improvements in wireless receiving systems
GB481064A (en) Improvements in or relating to demodulating circuit arrangements for phase modulated waves
GB610951A (en) Improvements in or relating to frequency modulated radio and like transmitters
GB466854A (en) Improvements in or relating to wireless or like receivers of the superheterodyne type
GB453852A (en) Improvements in or relating to thermionic valve oscillator arrangements
GB747502A (en) Improvements in or relating to frequency modulated oscillation generators
GB428581A (en) Improvements in or relating to electrical oscillation generators
GB597652A (en) Improvements in thermionic valve circuit arrangements