GB740624A - Improvements in or relating to thermionic feedback oscillation - Google Patents

Improvements in or relating to thermionic feedback oscillation

Info

Publication number
GB740624A
GB740624A GB3255352A GB3255352A GB740624A GB 740624 A GB740624 A GB 740624A GB 3255352 A GB3255352 A GB 3255352A GB 3255352 A GB3255352 A GB 3255352A GB 740624 A GB740624 A GB 740624A
Authority
GB
United Kingdom
Prior art keywords
cathode
valve
oscillator
oscillation
resistor
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
GB3255352A
Inventor
Bohdan Carniol
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.)
Tesla AS
Original Assignee
Tesla AS
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
Priority to NLAANVRAGE7111971,A priority Critical patent/NL175128B/en
Priority to CH313266D priority patent/CH313266A/en
Application filed by Tesla AS filed Critical Tesla AS
Priority to GB3255352A priority patent/GB740624A/en
Publication of GB740624A publication Critical patent/GB740624A/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
    • H03B5/20—Generation of oscillations using amplifier with regenerative feedback from output to input with frequency-determining element comprising resistance and either capacitance or inductance, e.g. phase-shift oscillator
    • H03B5/26—Generation of oscillations using amplifier with regenerative feedback from output to input with frequency-determining element comprising resistance and either capacitance or inductance, e.g. phase-shift oscillator frequency-determining element being part of bridge circuit in closed ring around which signal is transmitted; frequency-determining element being connected via a bridge circuit to such a closed ring, e.g. Wien-Bridge oscillator, parallel-T oscillator
    • H03B5/28—Generation of oscillations using amplifier with regenerative feedback from output to input with frequency-determining element comprising resistance and either capacitance or inductance, e.g. phase-shift oscillator frequency-determining element being part of bridge circuit in closed ring around which signal is transmitted; frequency-determining element being connected via a bridge circuit to such a closed ring, e.g. Wien-Bridge oscillator, parallel-T oscillator active element in amplifier being vacuum tube

Landscapes

  • Electron Sources, Ion Sources (AREA)
  • Inductance-Capacitance Distribution Constants And Capacitance-Resistance Oscillators (AREA)

Abstract

740,624. Valve generating circuits. TESLA NARODNI PODNIK. Dec. 23, 1952, No. 32553/52. Class 40 (6). The amplitude of oscillation of a resistancecapacity oscillator is stabilized by means of a current-variable resistor 13 connected between the cathode of a valve in the oscillator circuit and the cathode of a balancing valve 20 having the same D.C. cathode potential. As applied to an oscillator of the Wien bridge type (Fig. 4, not shown) the oscillator valve 15, Fig. 5, is provided with anode and cathode loads 7, 8 respectively, feeding the bridge network 9-12 and the amplitude of oscillation is determined by the negative feed-back produced in valve 15 by the resistor 13. Another embodiment, Fig. 6, comprises an oscillator utilizing a bridged-T network, one shunt element in which is formed by a cathode-follower 28 with a condenser 26 connected between grid and cathode. The non-linear resistor 13 then controls the degree of feed-back and thus the effective input capacity of the valve 28.
GB3255352A 1952-12-23 1952-12-23 Improvements in or relating to thermionic feedback oscillation Expired GB740624A (en)

Priority Applications (3)

Application Number Priority Date Filing Date Title
NLAANVRAGE7111971,A NL175128B (en) 1952-12-23 COLOR TV SYSTEM IN WHICH THE TELEVISION SIGNALS ARE TRANSFERRED IN A DIGITIZED AND PULSE CODE MODULATED FORM.
CH313266D CH313266A (en) 1952-12-23 1952-12-22 Amplifier with automatic gain control
GB3255352A GB740624A (en) 1952-12-23 1952-12-23 Improvements in or relating to thermionic feedback oscillation

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB3255352A GB740624A (en) 1952-12-23 1952-12-23 Improvements in or relating to thermionic feedback oscillation

Publications (1)

Publication Number Publication Date
GB740624A true GB740624A (en) 1955-11-16

Family

ID=10340399

Family Applications (1)

Application Number Title Priority Date Filing Date
GB3255352A Expired GB740624A (en) 1952-12-23 1952-12-23 Improvements in or relating to thermionic feedback oscillation

Country Status (3)

Country Link
CH (1) CH313266A (en)
GB (1) GB740624A (en)
NL (1) NL175128B (en)

Also Published As

Publication number Publication date
CH313266A (en) 1956-03-31
NL175128B (en)

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