GB147849A - Improvements in or relating to the generation of electric oscillations - Google Patents

Improvements in or relating to the generation of electric oscillations

Info

Publication number
GB147849A
GB147849A GB19901/20A GB1990120A GB147849A GB 147849 A GB147849 A GB 147849A GB 19901/20 A GB19901/20 A GB 19901/20A GB 1990120 A GB1990120 A GB 1990120A GB 147849 A GB147849 A GB 147849A
Authority
GB
United Kingdom
Prior art keywords
grid
relating
generation
electric oscillations
point
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
GB19901/20A
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.)
Telefunken AG
Original Assignee
Telefunken Gesellschaft fuer Drahtlose Telegraphie 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 Telefunken Gesellschaft fuer Drahtlose Telegraphie mbH filed Critical Telefunken Gesellschaft fuer Drahtlose Telegraphie mbH
Publication of GB147849A publication Critical patent/GB147849A/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
    • H03B5/08—Generation of oscillations using amplifier with regenerative feedback from output to input with frequency-determining element comprising lumped inductance and capacitance
    • H03B5/10—Generation of oscillations using amplifier with regenerative feedback from output to input with frequency-determining element comprising lumped inductance and capacitance active element in amplifier being vacuum tube

Landscapes

  • Oscillators With Electromechanical Resonators (AREA)
  • Inductance-Capacitance Distribution Constants And Capacitance-Resistance Oscillators (AREA)
  • Details Of Television Scanning (AREA)

Abstract

147,849. Ges. f³r Drahtlose Telegraphie. Sept. 29, 1917, [Convention date]. Electric oscillations producing. - Relates to oscillation-generators of the type in which the grid of a thermionic valve is connected to a point in the tuned plate circuit. According to the invention, the grid connexion is made in such a way that the constants of the grid circuit can be varied without disturbing the plate circuit and the frequency of the oscillations generated. In the form shown in Fig. 1, the grid is variably connected to the divided condenser 3 through a sliding contact 2. Alternatively, the grid may be connected through an adjustable resistance to the point 5 between the condenser 3 and inductance 6.
GB19901/20A 1917-07-25 1920-07-09 Improvements in or relating to the generation of electric oscillations Expired GB147849A (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE303216T 1917-07-25
FR534897T 1921-03-22

Publications (1)

Publication Number Publication Date
GB147849A true GB147849A (en) 1921-09-29

Family

ID=5672276

Family Applications (1)

Application Number Title Priority Date Filing Date
GB19901/20A Expired GB147849A (en) 1917-07-25 1920-07-09 Improvements in or relating to the generation of electric oscillations

Country Status (3)

Country Link
DE (2) DE303216C (en)
FR (1) FR534897A (en)
GB (1) GB147849A (en)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE758006C (en) * 1939-02-26 1953-02-16 Telefunken Gmbh Electric saw tooth generator with a parallel resonance circuit, which consists of a deflection coil and its own capacitance, and a transformer-type voltage feedback-coupled tube
DE1010119B (en) * 1953-04-07 1957-06-13 Automatic Elect Lab Circuit arrangement for frequency and amplitude stabilized oscillators

Also Published As

Publication number Publication date
DE303216C (en) 1920-07-30
DE310172C (en) 1920-08-10
FR534897A (en) 1922-04-04

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