GB1123297A - Electric oscillator circuit - Google Patents
Electric oscillator circuitInfo
- 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
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.
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)
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 |
-
1967
- 1967-04-17 GB GB1743467A patent/GB1123297A/en not_active Expired
Cited By (1)
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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