GB525343A - Improvements in or relating to crystal controlled electron discharge tube oscillation generators - Google Patents

Improvements in or relating to crystal controlled electron discharge tube oscillation generators

Info

Publication number
GB525343A
GB525343A GB5415/39A GB541539A GB525343A GB 525343 A GB525343 A GB 525343A GB 5415/39 A GB5415/39 A GB 5415/39A GB 541539 A GB541539 A GB 541539A GB 525343 A GB525343 A GB 525343A
Authority
GB
United Kingdom
Prior art keywords
crystal
back coupling
relating
impedance
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
GB5415/39A
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.)
Fides Gesellschaft fuer die Verwaltung und Verwertung von Gewerblichen Schutzrechten mbH
Original Assignee
Fides Gesellschaft fuer die Verwaltung und Verwertung von Gewerblichen Schutzrechten mbH
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 Fides Gesellschaft fuer die Verwaltung und Verwertung von Gewerblichen Schutzrechten mbH filed Critical Fides Gesellschaft fuer die Verwaltung und Verwertung von Gewerblichen Schutzrechten mbH
Publication of GB525343A publication Critical patent/GB525343A/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

  • Inductance-Capacitance Distribution Constants And Capacitance-Resistance Oscillators (AREA)

Abstract

525,343. Valve generating circuits. FIDES GES. FUR DIE VERWALTUNG UND VERWERTUNG VON GEWERBLICHEN SCHUTZRECHTEN. Feb. 17, 1939, No. 5415. Convention date, Feb. 17, 1938. [Class 40 (v)] In a generator having a crystal oscillating at its natural frequency included in the back coupling path the back coupling path and external impedance of the valve include elements whereby they offer real impedance values so that current and voltage are in phase therein. The Figure shows an arrangement employing a tuned transformer 2 so that the crystal 5 operates between impedances which are real and small in relation to the impedance of the crystal at resonance. As shown, the crystal may be made up as a unit together with an inductance 6 and condenser 7 which serve to adjust the frequency, while the voltage divider 3, 4 allows the adjustment of the amount of back coupling.
GB5415/39A 1938-02-17 1939-02-17 Improvements in or relating to crystal controlled electron discharge tube oscillation generators Expired GB525343A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE525343X 1938-02-17

Publications (1)

Publication Number Publication Date
GB525343A true GB525343A (en) 1940-08-27

Family

ID=6552573

Family Applications (1)

Application Number Title Priority Date Filing Date
GB5415/39A Expired GB525343A (en) 1938-02-17 1939-02-17 Improvements in or relating to crystal controlled electron discharge tube oscillation generators

Country Status (1)

Country Link
GB (1) GB525343A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2695960A (en) * 1951-04-05 1954-11-30 Bell Telephone Labor Inc Cathode crystal coupled oscillator

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2695960A (en) * 1951-04-05 1954-11-30 Bell Telephone Labor Inc Cathode crystal coupled oscillator

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