GB711178A - Improvements in or relating to thermionic valve oscillation generators - Google Patents

Improvements in or relating to thermionic valve oscillation generators

Info

Publication number
GB711178A
GB711178A GB507852A GB507852A GB711178A GB 711178 A GB711178 A GB 711178A GB 507852 A GB507852 A GB 507852A GB 507852 A GB507852 A GB 507852A GB 711178 A GB711178 A GB 711178A
Authority
GB
United Kingdom
Prior art keywords
crystal
anode
circuit
voltage
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
GB507852A
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.)
General Electric Co PLC
Original Assignee
General Electric Co 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 General Electric Co PLC filed Critical General Electric Co PLC
Priority to GB507852A priority Critical patent/GB711178A/en
Publication of GB711178A publication Critical patent/GB711178A/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

711,178. Valve generating circuits. GENERAL ELECTRIC CO., Ltd., and SIMPSON, A. I. F. Feb. 13, 1953 [Feb. 26, 1952], No. 5078/52. -Class 40 (6) A crystal controlled valve oscillator has the crystal 9 connected between the -control grid and a point on an impedance connected between an H.T. source and a further grid situated between the control grid and the anode, the output being derived 'from the anode and an automatic amplitude control voltage being applied to the control grid and obtained by rectifying a voltage proportional to the anode circuit voltage. The point on the further grid impedance is so chosen that the maximum safe potential across the crystal is not exceeded and the circuit may therefore be arranged to produce a large output without overdriving the crystal. The crystal shown comprises two 5‹, X cut plates bonded together and operating in a flexure mode, the internal electrode being connected to earth through a capacitor 11 which may be adjusted to vary the frequency of operation. The anode load comprises a circuit tuned to the fundamental or a harmonic frequency of the crystal. A delay voltage may be introduced into the circuit of the amplitude control rectifier by the alternative connection 23.
GB507852A 1952-02-26 1952-02-26 Improvements in or relating to thermionic valve oscillation generators Expired GB711178A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB507852A GB711178A (en) 1952-02-26 1952-02-26 Improvements in or relating to thermionic valve oscillation generators

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB507852A GB711178A (en) 1952-02-26 1952-02-26 Improvements in or relating to thermionic valve oscillation generators

Publications (1)

Publication Number Publication Date
GB711178A true GB711178A (en) 1954-06-23

Family

ID=9789341

Family Applications (1)

Application Number Title Priority Date Filing Date
GB507852A Expired GB711178A (en) 1952-02-26 1952-02-26 Improvements in or relating to thermionic valve oscillation generators

Country Status (1)

Country Link
GB (1) GB711178A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1258917B (en) * 1963-04-27 1968-01-18 Funkwerk Dresden Veb Circuit arrangement of a crystal stabilized transistor oscillator

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1258917B (en) * 1963-04-27 1968-01-18 Funkwerk Dresden Veb Circuit arrangement of a crystal stabilized transistor oscillator

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