John Parsons started very young with an American Flyer train set. He was intrigued by the wig-wag signals at grade crossings near his home and by age four made wig-wag replicas with Tinker Toys. He's been on a mission ever since to improve the realism of model railroad signal operation in a way that's accessible to the average modeler.
(. . . That is John Parsons at age 4 in the photo above AND that is his tinker toy wig wag he is working on. We wonder if John's appearance has changed much. The Editor . . .)
CLINIC #1 of 3 - Railroad Signaling for Railfans and Modelers
This clinic is an overview of North American railroad signal aspects and what they mean.
CLINIC #2 of 3 - Building a Model Railroad Signal System with Azatrax
This clinic is an "infomercial" of the Azatrax signal circuits - Where to place signals on a layout, what types of signals to use, and which Azatrax circuits to control them.
CLINIC #3 of 3 - Model Train Detection - What it is and what it's good for."
This clinic is an overview of model train detection methods, pros and cons, and examples of how they can be used to animate or automate layout features.
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