GB528344A - Improvements in or relating to piezo-electrically controlled electron discharge tube oscillation generators - Google Patents

Improvements in or relating to piezo-electrically controlled electron discharge tube oscillation generators

Info

Publication number
GB528344A
GB528344A GB1336839A GB1336839A GB528344A GB 528344 A GB528344 A GB 528344A GB 1336839 A GB1336839 A GB 1336839A GB 1336839 A GB1336839 A GB 1336839A GB 528344 A GB528344 A GB 528344A
Authority
GB
United Kingdom
Prior art keywords
piezo
valve
electrically controlled
relating
discharge tube
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
GB1336839A
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.)
HERBERT WILLIAM PRATLEY
Marconis Wireless Telegraph Co Ltd
BAE Systems Electronics Ltd
Original Assignee
HERBERT WILLIAM PRATLEY
Marconis Wireless Telegraph Co Ltd
Marconi 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 HERBERT WILLIAM PRATLEY, Marconis Wireless Telegraph Co Ltd, Marconi Co Ltd filed Critical HERBERT WILLIAM PRATLEY
Priority to GB1336839A priority Critical patent/GB528344A/en
Publication of GB528344A publication Critical patent/GB528344A/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

Landscapes

  • Oscillators With Electromechanical Resonators (AREA)

Abstract

528,344. Valve generating circuits. MARCONI'S WIRELESS TELEGRAPH CO., Ltd., and PRATLEY, H. W. May 4, 1939, No. 13368. [Class 40 (v)'] A piezo-electrically controlled oscillation genertor comprises an oscillator valve V1 having a piezo-electric crystal PE included between the grid and cathode and a parallel tuned circuit L2, C5 resonant at a desired harmonic of the crystal frequency loosely coupled by means of a condenser Cl to the anode circuit. The output at the harmonic frequency is applied through a condenser C2 to the grid of a valve V2 in the anode of which is included a parallel tuned circuit L3, C6 tuned to a higher harmonic frequency so that oscillations at this high frequency are taken off through condensers C3, C7, at the output terminal OT. The piezo-electric crystal may be connected between the grid and anode of valve VI, and a screen SB may be provided.
GB1336839A 1939-05-04 1939-05-04 Improvements in or relating to piezo-electrically controlled electron discharge tube oscillation generators Expired GB528344A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB1336839A GB528344A (en) 1939-05-04 1939-05-04 Improvements in or relating to piezo-electrically controlled electron discharge tube oscillation generators

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB1336839A GB528344A (en) 1939-05-04 1939-05-04 Improvements in or relating to piezo-electrically controlled electron discharge tube oscillation generators

Publications (1)

Publication Number Publication Date
GB528344A true GB528344A (en) 1940-10-28

Family

ID=10021694

Family Applications (1)

Application Number Title Priority Date Filing Date
GB1336839A Expired GB528344A (en) 1939-05-04 1939-05-04 Improvements in or relating to piezo-electrically controlled electron discharge tube oscillation generators

Country Status (1)

Country Link
GB (1) GB528344A (en)

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