GB1123297A - Electric oscillator circuit - Google Patents

Electric oscillator circuit

Info

Publication number
GB1123297A
GB1123297A GB1743467A GB1743467A GB1123297A GB 1123297 A GB1123297 A GB 1123297A GB 1743467 A GB1743467 A GB 1743467A GB 1743467 A GB1743467 A GB 1743467A GB 1123297 A GB1123297 A GB 1123297A
Authority
GB
United Kingdom
Prior art keywords
tube
inner tube
transistor
wire
circuit
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
GB1743467A
Inventor
John Gaskell Fairhurst
Kenneth Wilson
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.)
ASSOCIATED SEMICONDUCTOR MFT
Original Assignee
ASSOCIATED SEMICONDUCTOR MFT
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 ASSOCIATED SEMICONDUCTOR MFT filed Critical ASSOCIATED SEMICONDUCTOR MFT
Priority to GB1743467A priority Critical patent/GB1123297A/en
Publication of GB1123297A publication Critical patent/GB1123297A/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
    • H03B5/18—Generation of oscillations using amplifier with regenerative feedback from output to input with frequency-determining element comprising distributed inductance and capacitance
    • H03B5/1805—Generation of oscillations using amplifier with regenerative feedback from output to input with frequency-determining element comprising distributed inductance and capacitance the frequency-determining element being a coaxial resonator
    • 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
    • H03B2202/00—Aspects of oscillators relating to reduction of undesired oscillations
    • H03B2202/01—Reduction of undesired oscillations originated from distortion in one of the circuit elements of the oscillator
    • H03B2202/012—Reduction of undesired oscillations originated from distortion in one of the circuit elements of the oscillator the circuit element being the active device
    • 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
    • H03B2202/00—Aspects of oscillators relating to reduction of undesired oscillations
    • H03B2202/03—Reduction of undesired oscillations originated from internal parasitic couplings, i.e. parasitic couplings within the oscillator itself
    • 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
    • H03B2202/00—Aspects of oscillators relating to reduction of undesired oscillations
    • H03B2202/05—Reduction of undesired oscillations through filtering or through special resonator characteristics

Landscapes

  • Testing Of Individual Semiconductor Devices (AREA)
  • Investigating Or Analyzing Materials By The Use Of Ultrasonic Waves (AREA)

Abstract

1,123,297. Transistor oscillators, ASSOCIATED SEMICONDUCTOR Mfrs. Ltd. 17 April, 1967, No. 17434/67. Heading H3T. [Also in Divisions G1 and H1] In an oscillator circuit for a transistor 1 an outer tube C surrounds an inner tube B and a bent wire or tape E is positioned within the inner tube. The outer tube C which may be square section is insulated from the inner tube B so as to provide an open circuit line. The collector c of the transistor 1 has a heat sink 2 and the base b may be spring biased to contact a side 3 of the inner tube B. The emitter e is connected to a gold plated block 4 to which is connected the wire E, which may be of gold. This wire may be wound round an insulated bolt projecting through a hole in the righthand side of the tube C. The circuit provides a microwave oscillator which may be used to test transistors by successively plugging them into the circuit and comparing the output with that of a known satisfactory transistor as regards, e.g. power or ability to oscillate over a finite band or for grading their performance. Bias supplies 5 and 6 are provided and the output is taken from the coaxial line 9. An r.f. shield is provided by the outer tube C and a side of the tube C is movable to provide access for changing the transistors. The inner tube B and wire E are shown open circuited but they need not be.
GB1743467A 1967-04-17 1967-04-17 Electric oscillator circuit Expired GB1123297A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB1743467A GB1123297A (en) 1967-04-17 1967-04-17 Electric oscillator circuit

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB1743467A GB1123297A (en) 1967-04-17 1967-04-17 Electric oscillator circuit

Publications (1)

Publication Number Publication Date
GB1123297A true GB1123297A (en) 1968-08-14

Family

ID=10095127

Family Applications (1)

Application Number Title Priority Date Filing Date
GB1743467A Expired GB1123297A (en) 1967-04-17 1967-04-17 Electric oscillator circuit

Country Status (1)

Country Link
GB (1) GB1123297A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3148538A1 (en) * 1981-12-08 1983-06-16 Weto Wärmetechnik- und Electronic-Vertriebsges. mbH, 2000 Hamburg Method and device for drying hair curls by means of HF- or microwaves

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3148538A1 (en) * 1981-12-08 1983-06-16 Weto Wärmetechnik- und Electronic-Vertriebsges. mbH, 2000 Hamburg Method and device for drying hair curls by means of HF- or microwaves

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