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  2. Digital model railway control systems - Wikipedia

    en.wikipedia.org/wiki/Digital_model_railway...

    These digital signals can control all aspects of the model trains and accessories, including signals, turnouts, lighting, level crossings, cranes, turntables, etc. Constant power is supplied to the track and digital signals are sent which require electronic decoders to be fitted to locomotives and other devices to interpret the commands.

  3. Defect detector - Wikipedia

    en.wikipedia.org/wiki/Defect_detector

    Wheel sensors along the tracks feel for flat spots on the train's wheels. Any flat wheel that becomes too dangerous to travel on (a big flat spot on the train wheel) will be counted as a defect. Typically, these systems utilize accelerometers, strain gauges, fiber optic methods, or the very latest wheel impact phase detector (WIPD).

  4. Roco (model railroads) - Wikipedia

    en.wikipedia.org/wiki/Roco_(model_railroads)

    In 1974 and 1975, Lionel HO trains were produced by Roco before starting to move production to the Far East in 1976, completing the move by 1978. Some of Lionel HO trains between 1974 and 1978 were made by Athearn. On July 15, 2005 Roco Modellspielwaren GmbH was declared bankrupt and taken over by the creditor Raiffeisenbank.

  5. HO scale - Wikipedia

    en.wikipedia.org/wiki/HO_scale

    HO or H0 is a rail transport modelling scale using a 1:87 scale (3.5 mm to 1 foot). It is the most popular scale of model railway in the world. [1] [2] The rails are spaced 16.5 millimetres (0.650 in) apart for modelling 1,435 mm (4 ft 8 + 1 ⁄ 2 in) standard gauge tracks and trains in HO.

  6. Optical fiber - Wikipedia

    en.wikipedia.org/wiki/Optical_fiber

    These fiber optic coating layers are applied during the fiber draw, at speeds approaching 100 kilometers per hour (60 mph). Fiber optic coatings are applied using one of two methods: wet-on-dry and wet-on-wet. In wet-on-dry, the fiber passes through a primary coating application, which is then UV cured, then through the secondary coating ...

  7. HOn30 gauge - Wikipedia

    en.wikipedia.org/wiki/HOn30_gauge

    The term HOn30 (and sometimes HOn2½) is generally used when modelling American prototypes while H0e is used for European prototypes. In Britain, the term OO9 is used. [1] All these terms refer to models of narrow-gauge railways built to the world's most popular model railway scale of HO (1:87) but using a track gauge of 9 mm (0.354 in)—the gauge used for N scale models of standard-gauge ...

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    Get AOL Mail for FREE! Manage your email like never before with travel, photo & document views. Personalize your inbox with themes & tabs. You've Got Mail!

  9. Gorre & Daphetid - Wikipedia

    en.wikipedia.org/wiki/Gorre_&_Daphetid

    The Gorre & Daphetid ([ˈɡɔːri], [dɪˈfiːtɪd]) model railroad was a notable HO-scale layout built by John Whitby Allen in Monterey, California. The Gorre & Daphetid, also known as "The Gorre" or just "The G&D," is a trio of three successive model railroads. The first two were smaller in scale and were built at Allen's home in Monterey.

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