[woodcote]

The standard power supplies are more than adequate for running pretty much anything with traction magnets removed. And always a risk of damaging the powerbase if it accidentally receives excessive volts or the full 10A draw.

As for inserting the Scalextric lane change / put lane into mdf… I’ve never seen it in the flesh, only on forum posts. I’ve seen the whole track piece used or just the flipper and electronics (sensor, board & solenoid). The electronic components do need power from the track or separate power connection.

Your power tap design sounds great.