• The Hartley oscillator is an electronic oscillator circuit in which the oscillation frequency is determined by a tuned circuit consisting of capacitors...
    12 KB (1,449 words) - 11:00, 11 July 2025
  • Thumbnail for Ralph Hartley
    Vinton Lyon Hartley (November 30, 1888 – May 1, 1970) was an American electronics researcher. He invented the Hartley oscillator and the Hartley transform...
    13 KB (1,535 words) - 23:50, 27 May 2025
  • 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...
    17 KB (2,458 words) - 23:32, 13 November 2024
  • Thumbnail for Oscillation
    Oscillation (redirect from Oscillator)
    Electronic oscillator Extended interaction oscillator Hartley oscillator Oscillistor Phase-shift oscillator Pierce oscillator Relaxation oscillator RLC circuit...
    21 KB (3,045 words) - 10:46, 18 July 2025
  • Armstrong oscillator, a.k.a. Meissner oscillator Hartley oscillator Colpitts oscillator Clapp oscillator Cross-coupled LC oscillator Seiler oscillator Vackář...
    67 KB (7,035 words) - 08:52, 19 July 2025
  • Thumbnail for Positive feedback
    such harmonic oscillators, including the Armstrong oscillator, Hartley oscillator, Colpitts oscillator, and the Wien bridge oscillator. They all use positive...
    66 KB (7,448 words) - 06:35, 27 May 2025
  • Thumbnail for Butler oscillator
    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...
    6 KB (509 words) - 16:07, 3 January 2025
  • Thumbnail for Philicorda
    polyphony all keys can play simultaneously[dubious – discuss] Oscillator 12 hartley oscillators with frequency dividers Synthesis type Electric organ Effects...
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  • Thumbnail for Center tap
    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...
    6 KB (852 words) - 16:23, 25 May 2025
  • conductively or inductively depending on whether the oscillator is a Colpitts, Hartley oscillator, Armstrong tickler or a Meissner. Power control for the...
    20 KB (2,866 words) - 05:08, 23 January 2025
  • copy – Hardware register – Harmonic analysis – Harmonic oscillator – Harmonic – Hartley oscillator – H-channel – Heat sink – Helical antenna – Helmholtz...
    34 KB (2,802 words) - 02:36, 17 December 2024
  • States Secretary of Veterans Affairs Ralph Hartley, A.B. 1909, inventor of the Hartley oscillator and the Hartley transform, recipient of the IEEE Medal of...
    110 KB (9,952 words) - 02:14, 6 July 2025
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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...
    17 KB (2,513 words) - 16:25, 3 May 2025
  • Harrod–Johnson diagram – Roy F. Harrod and Harry G. Johnson Hartley oscillator – Ralph Hartley Hartman effect – Thomas E. Hartman Hartmann mask (or hat)...
    72 KB (6,888 words) - 11:20, 28 June 2025
  • Thumbnail for Dynatron oscillator
    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...
    24 KB (2,517 words) - 12:17, 28 May 2025
  • Davis Archived 26 May 2010 at the Wayback Machine, www.coutant.org RVL Hartley, transmission expert, Obituary, News of the IEEE, 1970, p. 125 L. W. Parkin...
    290 KB (1,180 words) - 17:12, 21 July 2025
  • fabrics Ralph Hartley – co-founder of information theory (with Shannon and Hamming); inventor of Hartley transform and Hartley oscillator George Smoot...
    51 KB (5,498 words) - 09:54, 2 June 2025
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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...
    114 KB (14,534 words) - 21:23, 16 June 2025
  • power transmitters; oscillators such as the Colpitts oscillator, Hartley oscillator, crystal oscillators, and stability of oscillators. The last three topics...
    47 KB (4,641 words) - 19:18, 4 June 2025
  • Thumbnail for Daniël Goulooze
    van Proosdy had built a radio transmitter that was based on the Hartley oscillator. Goulooze knew nothing of how wireless telegraphy worked, so delegated...
    75 KB (10,199 words) - 08:49, 30 June 2025
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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...
    81 KB (10,973 words) - 02:11, 22 May 2025
  • Thumbnail for University of Utah College of Engineering
    Sutherland Ralph Hartley - Co-founder of Information Theory (along with Shannon and Hamming), inventor of Hartley Transform and Hartley Oscillator, IEEE Medal...
    34 KB (3,126 words) - 16:45, 15 March 2025
  • Electric in 1907. His Western Electric colleague, Ralph Hartley invented an inductive coupling oscillator in 1915, and Colpitts invented its electrical dual...
    5 KB (517 words) - 21:14, 12 October 2023
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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...
    182 KB (12,624 words) - 13:53, 20 July 2025
  • Thumbnail for Single-sideband modulation
    a product detector which mixes it with the output of a beat frequency oscillator (BFO). In other words, it is just another stage of heterodyning. For this...
    33 KB (4,814 words) - 03:16, 26 May 2025
  • Thumbnail for Negative resistance
    feedback oscillators such as Hartley or Colpitts oscillators work. This negative resistance model is an alternate way of analyzing feedback oscillator operation...
    171 KB (15,490 words) - 23:24, 22 May 2025
  • Thumbnail for Allan variance
    two-sample variance, is a measure of frequency stability in clocks, oscillators and amplifiers. It is named after David W. Allan and expressed mathematically...
    64 KB (9,353 words) - 13:48, 14 July 2025
  • Law of Cooling: Laboratory / Nuclear Disintegration / Nuclear Energy / Oscillators, Amplifiers and Radio / The Photoelectric Effect / Photometry / Photon...
    336 KB (283 words) - 01:46, 12 March 2025
  • Thumbnail for Tesla coil
    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...
    90 KB (9,939 words) - 07:35, 15 June 2025
  • Thumbnail for Normal distribution
    ground state wave function in position space of the quantum harmonic oscillator. The position of a particle that experiences diffusion.[citation needed]...
    148 KB (21,701 words) - 22:41, 20 July 2025