Warflight,
I put together a short video of my old time passenger train showing the before and after adding passengers and interior lighting. Notice, you can't even see the capacitors. I mounted the PCB to the under side of the roof and there's still plenty of room for the passengers. DCC power is picked up through the trucks using a simple wiper made of bronze wire. https://youtu.be/v4rmXW_UDQg
Rod in PA
I put together a short video of my old time passenger train showing the before and after adding passengers and interior lighting. Notice, you can't even see the capacitors. I mounted the PCB to the under side of the roof and there's still plenty of room for the passengers. DCC power is picked up through the trucks using a simple wiper made of bronze wire. https://youtu.be/v4rmXW_UDQg
Rod in PA