How To Wire A Marx #404 Block Signal

A friend gave me a "junk box" full of old transformers and accessories. Among the "junk" was this Marx #404 Automatic Block Signal. Here is how to wire it so that it will make the train start and stop as you change signal indications. Pretty neat!

This is my "smoke test" to see if the signal will actually work before I invest in new light bulbs for it.

It works!!

Toy Train Tips And Tricks is a channel devoted to the operation, repair, history, and collecting of classic 3-rail O and O27 gauge trains made by Lionel, Marx, K-Line, Menards, and other manufacturers.

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