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Reply to "Conventional Engines Slow speed"

Yes, a chopped-wave transformer will help.  The K-Line set transformer (larger one with the metal case) is one of the best for coaxing good performance out of those old motors.  The sine wave has a sharp leading edge and amplitude is something like 36v peak-to-peak.  You might notice a little more "buzz" compared to a traditional wound-field autotransformer.

Not sure about your expectations here... None of these postwar style Pullmor-motored steam locos will run at a constant slow speed for long distances, or for long periods of time.  The gear ratios just aren't suited for this type of operation.  Furthermore series-wound AC motors are VERY sensitive to changes in load.  Get a level and make sure your mainline is absolutely pool-table flat, with NO rough track joints, and no pinch points in the gauge.

A couple of more radical options would be to replace the Pullmor with a Timko motor and some type of speed control, or retire your 8615 in favor of the Railking L&N Berk with Proto2, MTH p/n 30-1178-1.

OGR Publishing, Inc., 1310 Eastside Centre Ct, Suite 6, Mountain Home, AR 72653
800-980-OGRR (6477)
www.ogaugerr.com

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