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Topic: Clapp oscillator

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	Oscillation
		Oscillation is the periodic variation, typically in time, of some measure as seen, for example, in a swinging pendulum.
		The simplest oscillating system is a mass, subject to the force of gravity, attached to a linear spring.
		The phenomenon of hunting is a self-exciting oscillation in non-linear electrical circuits.
	www.brainyencyclopedia.com /encyclopedia/o/os/oscillation.html (681 words)

	Clapp oscillator -- Facts, Info, and Encyclopedia article (Site not responding. Last check: 2007-10-08)
		The Clapp oscillator is a (additional info and facts about Colpitts oscillator) Colpitts oscillator with an additional capacitor placed in series with the inductor.
		A Clapp circuit is often preferred over a Colpitts circuit for constructing a variable frequency oscillator ((additional info and facts about VFO) VFO) that uses a single variable capacitor to adjust the frequency.
		This problem is avoided in the Clapp circuit by using fixed capacitors in the voltage divider and a variable capacitor (C0) in series with the inductor.
	www.absoluteastronomy.com /encyclopedia/c/cl/clapp_oscillator.htm (220 words)

	Oscillation (Site not responding. Last check: 2007-10-08)
		Oscillations occur not only in physical systems but also in biological systems and in human society.Oscillations are the origin of the sensation of musical tone.
		The phenomenon of hunting is aself-exciting oscillation in non-linear electrical circuits.
		The apparent motions of the individual oscillations typically appears very complicatedbut a more economic, computationally simpler and conceptually deeper description is given by resolving the motion into normal modes.
	www.therfcc.org /oscillation-17066.html (626 words)

	Articles - Electronic oscillator (Site not responding. Last check: 2007-10-08)
		The basic form of an harmonic oscillator is an electronic amplifier with the output attached to a narrow-band electronic filter, and the output of the filter attached to the input of the amplifier.
		Square-wave relaxation oscillators can be used to provide the clock signal for sequential logic circuits such as timers and counters, although crystal oscillators are often preferred for their greater stability.
		Triangle-wave or sawtooth oscillators are used in the timebase circuits that generate the horizontal deflection signals for cathode ray tubes in analogue oscilloscopes and television sets.
	www.sinoz.com /articles/Electronic_oscillator (287 words)

	Articles - Clapp oscillator (Site not responding. Last check: 2007-10-08)
		The Clapp oscillator is one of several types of electronic oscillator constructed from a transistor (or vacuum tube) and a positive feedback network.
		The Clapp oscillator is a Colpitts oscillator with an additional capacitor placed in series with the inductor.
		A Clapp circuit is often preferred over a Colpitts circuit for constructing a variable frequency oscillator (VFO) that uses a single variable capacitor to adjust the frequency.
	www.zgrey.com /articles/Clapp_oscillator (218 words)

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