GB676716A - Improvements in or relating to thermionic valve oscillations - Google Patents

Improvements in or relating to thermionic valve oscillations

Info

Publication number
GB676716A
GB676716A GB4481/50A GB448150A GB676716A GB 676716 A GB676716 A GB 676716A GB 4481/50 A GB4481/50 A GB 4481/50A GB 448150 A GB448150 A GB 448150A GB 676716 A GB676716 A GB 676716A
Authority
GB
United Kingdom
Prior art keywords
condenser
condensers
feb
relating
series
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
GB4481/50A
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
Application filed by Tesla AS filed Critical Tesla AS
Publication of GB676716A publication Critical patent/GB676716A/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

Abstract

676,716. Valve generating circuits; superheterodyne circuits. TESLA, NATIONAL CORPORATION, and VACKAR, J. Feb. 21, 1950 [Feb. 26, 1949], No. 4481/50. Classes 40 (v) and 40 (vi)] In an oscillator circuit in which the cathode, grid and anode of a valve are connected to points on a voltage divider C2, C3, C' in parallel with the condenser C<SP>1</SP> of a tuned circuit L<SP>1</SP>, C<SP>1</SP>, constant amplitude of oscillation over the tuning range is obtained by means of an additional condenser C5 in series with the condenser C' and connected so as to develop a voltage proportional to the current in the tuned circuit L<SP>1</SP>, C<SP>1</SP>. In a superheterodyne receiver the condensers C<SP>4</SP>, C<SP>5</SP> may be used for the additional purpose of obtaining accurate tracking. An alternative arrangement, Fig. 4 (not shown), comprises the connection of inductances in series with either or both of the condensers C<SP>3</SP>, C<SP>4</SP>, the condenser C<SP>5</SP> then being omitted.
GB4481/50A 1949-02-26 1950-02-21 Improvements in or relating to thermionic valve oscillations Expired GB676716A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CS676716X 1949-02-26

Publications (1)

Publication Number Publication Date
GB676716A true GB676716A (en) 1952-07-30

Family

ID=5454682

Family Applications (1)

Application Number Title Priority Date Filing Date
GB4481/50A Expired GB676716A (en) 1949-02-26 1950-02-21 Improvements in or relating to thermionic valve oscillations

Country Status (1)

Country Link
GB (1) GB676716A (en)

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