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  2. Resonant inductive coupling - Wikipedia

    en.wikipedia.org/wiki/Resonant_inductive_coupling

    Resonant inductive coupling or magnetic phase synchronous coupling[4][5] is a phenomenon with inductive coupling in which the coupling becomes stronger when the "secondary" (load-bearing) side of the loosely coupled coil resonates. [5] A resonant transformer of this type is often used in analog circuitry as a bandpass filter.

  3. Tesla coil - Wikipedia

    en.wikipedia.org/wiki/Tesla_coil

    A Tesla coil is a radio frequency oscillator that drives an air-core double-tuned resonant transformer to produce high voltages at low currents. [4][7][8][9][10][11] Tesla's original circuits and most modern coils use a simple spark gap to excite oscillations in the tuned transformer. More sophisticated designs use transistor or thyristor [7 ...

  4. Transformer types - Wikipedia

    en.wikipedia.org/wiki/Transformer_types

    There are three primary types of voltage transformers (VT): electromagnetic, capacitor, and optical. The electromagnetic voltage transformer is a wire-wound transformer. The capacitor voltage transformer uses a capacitance potential divider and is used at higher voltages due to a lower cost than an electromagnetic VT.

  5. Neon-sign transformer - Wikipedia

    en.wikipedia.org/wiki/Neon-sign_transformer

    A neon-sign transformer (NST) is a transformer made for the purpose of powering a neon sign. They convert mains voltage in the range 120-347 V up to high voltages, in the range of 2 to 15 kV. These transformers supply between 18-30 mA; 60 mA on special order. [1] The high-voltage electricity produced is used to excite neon or other gases are ...

  6. Spark-gap transmitter - Wikipedia

    en.wikipedia.org/wiki/Spark-gap_transmitter

    The spark gap is inside the box with the transparent cover at top center. A spark-gap transmitter is an obsolete type of radio transmitter which generates radio waves by means of an electric spark. [1][2] Spark-gap transmitters were the first type of radio transmitter, and were the main type used during the wireless telegraphy or "spark" era ...

  7. Fractal burning - Wikipedia

    en.wikipedia.org/wiki/Fractal_burning

    Transformers from microwave ovens are frequently used for the technique because they are easily obtainable. [ 7 ] [ 4 ] They can produce voltages of around 2,100 volts [ 8 ] (2,000 volts is used by the modern electric chair , [ 6 ] a device used to execute an individual by electrocution ), and a fatal current of between 500 and 2,000 milliamps ...

  8. List of Transformers film series cast and characters - Wikipedia

    en.wikipedia.org/wiki/List_of_Transformers_film...

    Megatron. Megatron (voiced by Hugo Weaving in the first three films, Frank Welker in The Last Knight and the first two video games, Brian Tyree Henry in Transformers One, Fred Tatasciore in the third video game and Rise of the Dark Spark) is the leader of the Decepticons and the main antagonist of the Transformers franchise (serving as the main ...

  9. G.I. Joe (film series) - Wikipedia

    en.wikipedia.org/wiki/G.I._Joe_(film_series)

    G.I. Joe is a series of American military science fiction action films based on the toy line of the same name.Development for the first film began in 2003, but when the United States launched the invasion of Iraq in March 2003, Hasbro suggested adapting the Transformers instead.

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