Friday, October 16, 2009

3rd rail changeover - works!

Good news from the shop. The third rail changeover switch has been tested under "live" operation and it works correctly, after a bad resistor or two was replaced.

You may recall the switch and its function were discussed at length here, with photos here.

Operation is fully automatic. The system detects the presence of third rail (with accompanying lack of trolley) and switches over. Or vice versa.

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