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» Model Railroad Electronic Circuits - Easy electronic circuits you can build, including crossing flasher, constant directional lighting, train detectors, and power supplies. Provided by Mark Rollins.

http://home.cogeco.ca/~rpaisley4/CircuitIndex.html

» Model Railroad Electronics - Electronic circuits for use on a model railroads including -crossing light flashers, block occupancy detectors, train position detectors, simple signals, throttles, switch machines and automatic reverse loop circuits.

» Model Railroad Technical Information - Basic to expert tips and methods to improve performance and fabrication skills with examples plus over three hundred pictures and drawings.

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