GB259174A - Multi-frequency crystal controlled oscillator - Google Patents

Multi-frequency crystal controlled oscillator

Info

Publication number
GB259174A
GB259174A GB9506/26A GB950626A GB259174A GB 259174 A GB259174 A GB 259174A GB 9506/26 A GB9506/26 A GB 9506/26A GB 950626 A GB950626 A GB 950626A GB 259174 A GB259174 A GB 259174A
Authority
GB
United Kingdom
Prior art keywords
crystals
circuit
valve
frequency
electric
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
GB9506/26A
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.)
Wired Radio Inc
Original Assignee
Wired Radio Inc
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 Wired Radio Inc filed Critical Wired Radio Inc
Publication of GB259174A publication Critical patent/GB259174A/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

259,174. Wired Radio, Inc., (Assignees of Taylor, A. H.). Oct. 2, 1925, [Convention date]. Thermionic generator; piezo-electric crystal units.-The oscillations of a thermionic valve 1 are selectively maintained by electric means at the characteristic frequency of any one of a multiplicity of piezo-electric crystals Q1, Q2. THe crystals are arranged in the grid circuit of the valve in the form of a stack 5 with the adjacent surfaces in intimate contact and metallic plates PI, P2 at opposite ends in contact with the faces of the crystals. The frequency required is selected by a tuned circuit 10 in the anode circuit comprising a variable inductance 14 and a variable condenser 15. The oscillator may be connected directly to an amplifying valve or through a frequency-multiplying circuit.
GB9506/26A 1925-10-02 1926-04-10 Multi-frequency crystal controlled oscillator Expired GB259174A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US259174XA 1925-10-02 1925-10-02

Publications (1)

Publication Number Publication Date
GB259174A true GB259174A (en) 1927-05-05

Family

ID=21828763

Family Applications (1)

Application Number Title Priority Date Filing Date
GB9506/26A Expired GB259174A (en) 1925-10-02 1926-04-10 Multi-frequency crystal controlled oscillator

Country Status (1)

Country Link
GB (1) GB259174A (en)

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