GB877368A - Improvements in or relating to oscillation generators - Google Patents

Improvements in or relating to oscillation generators

Info

Publication number
GB877368A
GB877368A GB4307059A GB4307059A GB877368A GB 877368 A GB877368 A GB 877368A GB 4307059 A GB4307059 A GB 4307059A GB 4307059 A GB4307059 A GB 4307059A GB 877368 A GB877368 A GB 877368A
Authority
GB
United Kingdom
Prior art keywords
condenser
pentode
cathode follower
triode
cathode
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
GB4307059A
Inventor
Francis John Barker
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.)
Marconis Wireless Telegraph Co Ltd
BAE Systems Electronics Ltd
Original Assignee
Marconis Wireless Telegraph Co Ltd
Marconi Co Ltd
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 Marconis Wireless Telegraph Co Ltd, Marconi Co Ltd filed Critical Marconis Wireless Telegraph Co Ltd
Priority to GB4307059A priority Critical patent/GB877368A/en
Priority to NL258168A priority patent/NL258168A/xx
Priority to FR844519A priority patent/FR1274081A/en
Publication of GB877368A publication Critical patent/GB877368A/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
    • 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
    • H03B5/02—Details
    • H03B5/04—Modifications of generator to compensate for variations in physical values, e.g. power supply, load, temperature

Landscapes

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

Abstract

877,368. Valve oscillating circuits. MARCONI'S WIRELESS TELEGRAPH CO. Ltd. July 5, 1960 [Dec. 18, 1959], No. 43070/59. Class 40(6) A stable valve oscillator comprises a tuned circuit including series inductance 5 and condenser 6 and shunt variable condenser 7 loosely coupled by a small value condenser 8 to a cathode follower 11. The cathode follower 11 comprises the triode portion of a triode pentode and drives the pentode portion 1 via R.C. coupling circuit 12, 14, 15. The pentode portion 1 has as load resistance 2 and is back-coupled to the tuned circuit via condenser 3. A condenser 16 from the anode of the pentode portion 1 to earth equalizes the intensity of oscillation over the tuning range and reduces harmonics of the oscillator frequency. The output is taken across the cathode load 12 of the cathode follower. In a superheterodyne receiver, the condenser 6 may comprise the tracking condenser.
GB4307059A 1959-12-18 1959-12-18 Improvements in or relating to oscillation generators Expired GB877368A (en)

Priority Applications (3)

Application Number Priority Date Filing Date Title
GB4307059A GB877368A (en) 1959-12-18 1959-12-18 Improvements in or relating to oscillation generators
NL258168A NL258168A (en) 1959-12-18 1960-11-21
FR844519A FR1274081A (en) 1959-12-18 1960-11-21 Variable voltage supply and stabilized frequency oscillation generators

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB4307059A GB877368A (en) 1959-12-18 1959-12-18 Improvements in or relating to oscillation generators

Publications (1)

Publication Number Publication Date
GB877368A true GB877368A (en) 1961-09-13

Family

ID=10427190

Family Applications (1)

Application Number Title Priority Date Filing Date
GB4307059A Expired GB877368A (en) 1959-12-18 1959-12-18 Improvements in or relating to oscillation generators

Country Status (2)

Country Link
GB (1) GB877368A (en)
NL (1) NL258168A (en)

Also Published As

Publication number Publication date
NL258168A (en) 1964-04-27

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