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Hartley oscillator information


The Hartley oscillator is an electronic oscillator circuit in which the oscillation frequency is determined by a tuned circuit consisting of capacitors and inductors, that is, an LC oscillator. The circuit was invented in 1915 by American engineer Ralph Hartley. The distinguishing feature of the Hartley oscillator is that the tuned circuit consists of a single capacitor in parallel with two inductors in series (or a single tapped inductor), and the feedback signal needed for oscillation is taken from the center connection of the two inductors.

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Hartley oscillator

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The Hartley oscillator is an electronic oscillator circuit in which the oscillation frequency is determined by a tuned circuit consisting of capacitors...

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tuned circuit. (It can be considered as the electrical dual of a Hartley oscillator, where the feedback signal is taken from an "inductive" voltage divider...

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Vinton Lyon Hartley (November 30, 1888 – May 1, 1970) was an American electronics researcher. He invented the Hartley oscillator and the Hartley transform...

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oscillator, a.k.a. Meissner oscillator Hartley oscillator Colpitts oscillator Clapp oscillator Seiler oscillator Vackář oscillator Pierce oscillator Tri-tet...

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Electronic oscillator Extended interaction oscillator Hartley oscillator Oscillistor Phase-shift oscillator Pierce oscillator Relaxation oscillator RLC circuit...

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conductively or inductively depending on whether the oscillator is a Colpitts, Hartley oscillator, Armstrong tickler or a Meissner. Power control for the...

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Center tap

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rather, closer to one end. A common application of this is in the Hartley oscillator. Inductors with taps also permit the transformation of the amplitude...

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Butler oscillator

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earthed grid oscillator, a derivative of the Hartley oscillator. It is also known as the bridged-T oscillator or the grounded-base oscillator. The classic...

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Positive feedback

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such harmonic oscillators, including the Armstrong oscillator, Hartley oscillator, Colpitts oscillator, and the Wien bridge oscillator. They all use positive...

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University of Utah

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States Secretary of Veterans Affairs Ralph Hartley, A.B. 1909, invented the Hartley oscillator and the Hartley transform, recipient of the IEEE Medal of...

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copy – Hardware register – Harmonic analysis – Harmonic oscillator – Harmonic – Hartley oscillator – H-channel – Heat sink – Helical antenna – Helmholtz...

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Pentagrid converter

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oscillator design to one where the oscillator 'anode' was operated from the HT+ (B+) rail. This was often accomplished by using a Hartley Oscillator circuit...

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tuned circuit without the taps or "tickler" coils required by oscillators such as the Hartley or Armstrong circuits. In the dynatron a tetrode tube is used...

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List of Rhodes Scholars

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Davis Archived 26 May 2010 at the Wayback Machine, www.coutant.org RVL Hartley, transmission expert Archived 28 November 2018 at the Wayback Machine,...

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Amateur radio in India

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power transmitters; oscillators such as the Colpitts oscillator, Hartley oscillator, crystal oscillators, and stability of oscillators. The last three topics...

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May 1970

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Ralph Hartley, 81, American inventor, electrical engineer and mathematician who conceived the Hartley transform and who invented the Hartley oscillator Yi...

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Scientific phenomena named after people

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Harrod–Johnson diagram – Roy F. Harrod and Harry G. Johnson Hartley oscillator – Ralph Hartley Hartman effect – Thomas E. Hartman Hartmann mask (or hat)...

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University of Southampton

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has its origin as the Hartley Institution which was formed in 1862 from a benefaction by Henry Robinson Hartley (1777–1850). Hartley had inherited a fortune...

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Philicorda

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polyphony all keys can play simultaneously[dubious – discuss] Oscillator 12 hartley oscillators with frequency dividers Synthesis type Electric organ Effects...

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University of Utah College of Engineering

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Sutherland Ralph Hartley - Co-founder of Information Theory (along with Shannon and Hamming), inventor of Hartley Transform and Hartley Oscillator, IEEE Medal...

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fabrics Ralph Hartley – co-founder of information theory (with Shannon and Hamming); inventor of Hartley transform and Hartley oscillator George Smoot...

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Negative resistance

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feedback oscillators such as Hartley or Colpitts oscillators work. This negative resistance model is an alternate way of analyzing feedback oscillator operation...

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Chain Home

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produce the short pulses of signal, the transmitter consisted of Hartley oscillators feeding a pair of tetrode amplifier valves. The tetrodes were switched...

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Allan variance

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two-sample variance, is a measure of frequency stability in clocks, oscillators and amplifiers. It is named after David W. Allan and expressed mathematically...

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provide the switching action required. A Tesla coil is a radio frequency oscillator that drives an air-core double-tuned resonant transformer to produce high...

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