Q: I’m trying to decide on which turnout controller to use on my HO scale railroad. I’ve looked at the Tortoise by Circuitron and the Walthers Layout Control System. I like Walthers products, but it ...

This small circuit can be used to control model railway turnouts operated by AC voltages. A logic level in the range of 5–12 V can be used as the control signal. The coils of the turnout are switched ...