Smith Southwest HO & N speed monitor system


protocraft


TM


Super Power Tsunami®DCC Decoder


Protocraft’s modification allows SoundTraxx’s Tsunami® decoders to operate continuously at 3.5 amps. and introduces the well liked Tsunami® to the O Scale field.


MULTI-SCALE — A new collection of electrical components able to calcu- late scale speed in HO and N scale, plus identify an assigned train num- ber and report its rate in scale mph, is new from Smith Southwest Model Rail. The company’s new speed mon- itor system works with standard DC or Digital Command Control opera- tions. Retailing for $138, the base


system includes a receiver, CPU, pri- mary display with cable, and four transmitters. Visit Smith Southwest Model Rail’s website for additional information.


Smith Southwest Model Rail 3310 Keller Springs Road Carrollton, TX 75006 214-382-0285


smithsouthwestmodelrail.com AVAILABLE AT protocraft.com NMRA® Presents: Concrete in Railroad Construction


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Published by The Atlas Portland Cement Company in 1909 232 pages, 6”x 9” format, hardcover with dust jacket


New foreword by Tony Koester, NMRA Board member and well-known model railroading author and editor Over 120 black-and-white photos and illustrations


Original preface written by Sanford E. Thompson, a civil engineer described as one of the leading concrete experts of the time


Describes the use of concrete in numerous railroad- related applications, including bridges, piers, retaining walls, stations, tunnels, and many others


$25 95 NMRA® members $35 95 Non-members


Order online: www.nmra.org or by Mail: 4121 Cromwell Road, Chattanooga, TN 37421 Phone: (423) 892-2846 Fax: (423) 899-4869


NOVEMBER 2015 21


3.5


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