@Richie C. posted:Not sure if everyone agrees, but one way to implement Ron's TVS placement plan is to use a 2 gang terminal block at each track drop.
Screw the small terminal block to the underside of the layout; attach an 8"-10" drop from the track to the small terminal block on one side and the wires from the main terminal block from the TIU to the other side. Then solder a TVS across the + and - wires right on the block.
Thanks to John H.
With updated pic of power drop to track from two-gang terminal block with TVS installed and waiting to be hooked up on the other side to main power.