@SteveH posted:Another missed item are the questions that revived this thread today for the electrical engineers here:
1. If you put the TVS across the motor, you're guarding this train's electronics from it's own transients, but not transients from other sources on the layout (other trains, solenoids, relays, ...).
2. If you have digital signaling like DCS, adding too many TVS all over will begin to impact the signal performance, since even when not-clamped they present significant capacitance at their input terminals. If you have no digital signaling then there's no harm done.
