GB618229A - Improvements in and relating to thermionic valve oscillators - Google Patents

Improvements in and relating to thermionic valve oscillators

Info

Publication number
GB618229A
GB618229A GB1057745A GB1057745A GB618229A GB 618229 A GB618229 A GB 618229A GB 1057745 A GB1057745 A GB 1057745A GB 1057745 A GB1057745 A GB 1057745A GB 618229 A GB618229 A GB 618229A
Authority
GB
United Kingdom
Prior art keywords
amplifier
circuit
known type
valve
output terminals
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
GB1057745A
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.)
ARNOLD CHARLES LYNCH
Original Assignee
ARNOLD CHARLES LYNCH
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 ARNOLD CHARLES LYNCH filed Critical ARNOLD CHARLES LYNCH
Priority to GB1057745A priority Critical patent/GB618229A/en
Publication of GB618229A publication Critical patent/GB618229A/en
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03K—PULSE TECHNIQUE
    • H03K3/00—Circuits for generating electric pulses; Monostable, bistable or multistable circuits
    • H03K3/02—Generators characterised by the type of circuit or by the means used for producing pulses
    • H03K3/04—Generators characterised by the type of circuit or by the means used for producing pulses by the use, as active elements, of vacuum tubes only, with positive feedback
    • H03K3/05—Generators characterised by the type of circuit or by the means used for producing pulses by the use, as active elements, of vacuum tubes only, with positive feedback using means other than a transformer for feedback
    • H03K3/06—Generators characterised by the type of circuit or by the means used for producing pulses by the use, as active elements, of vacuum tubes only, with positive feedback using means other than a transformer for feedback using at least two tubes so coupled that the input of one is derived from the output of another, e.g. multivibrator
    • H03K3/08—Generators characterised by the type of circuit or by the means used for producing pulses by the use, as active elements, of vacuum tubes only, with positive feedback using means other than a transformer for feedback using at least two tubes so coupled that the input of one is derived from the output of another, e.g. multivibrator astable
    • 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
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03K—PULSE TECHNIQUE
    • H03K4/00—Generating pulses having essentially a finite slope or stepped portions
    • H03K4/06—Generating pulses having essentially a finite slope or stepped portions having triangular shape
    • H03K4/08—Generating pulses having essentially a finite slope or stepped portions having triangular shape having sawtooth shape
    • H03K4/10—Generating pulses having essentially a finite slope or stepped portions having triangular shape having sawtooth shape using as active elements vacuum tubes only
    • H03K4/12—Generating pulses having essentially a finite slope or stepped portions having triangular shape having sawtooth shape using as active elements vacuum tubes only in which a sawtooth voltage is produced across a capacitor

Landscapes

  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Reciprocating Pumps (AREA)

Abstract

618,229. Valve generating circuits. LYNCH, A. C. April 27, 1945, No. 10577. [Class 40 (vi)] A thermionic valve oscillator comprises a tuned circuit connected to a driving circuit which is so operated as to produce a square potential waveform. The tuned circuit 3, 4 is connected by the resistance 2 to the output terminals of the amplifier 1, whose input is derived from the capacity or resistance potentiometer 5, 6. The amplifier 1 may be of known type, the gain being at least five times that necessary to produce oscillations, so that the output valve is overloaded and produces square waves. This action may be increased by the use of positive grid bias, in which case the oscillator may be arranged to be non-self-starting and used to indicate the arrival of a signal or the interruption of its power supply. Alternatively, diode or other limiters of known type may be employed, or gas-filled valves, or the output stage of the amplifier may comprise a trigger circuit of known type. In a modified arrangement (Fig. 2, not shown), a saw-tooth waveform is produced by the connection of an R.C. circuit across the amplifier output terminals.
GB1057745A 1945-04-27 1945-04-27 Improvements in and relating to thermionic valve oscillators Expired GB618229A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB1057745A GB618229A (en) 1945-04-27 1945-04-27 Improvements in and relating to thermionic valve oscillators

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB1057745A GB618229A (en) 1945-04-27 1945-04-27 Improvements in and relating to thermionic valve oscillators

Publications (1)

Publication Number Publication Date
GB618229A true GB618229A (en) 1949-02-18

Family

ID=9970402

Family Applications (1)

Application Number Title Priority Date Filing Date
GB1057745A Expired GB618229A (en) 1945-04-27 1945-04-27 Improvements in and relating to thermionic valve oscillators

Country Status (1)

Country Link
GB (1) GB618229A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE891094C (en) * 1950-05-17 1953-09-24 Siemens Ag High-frequency generator circuit with an electron tube and a parallel resonance circuit loosely coupled to it

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE891094C (en) * 1950-05-17 1953-09-24 Siemens Ag High-frequency generator circuit with an electron tube and a parallel resonance circuit loosely coupled to it

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