A couple of Legacy K4s with minor 3RS mods. The 3667 was bought from the buy/sell on here a few months ago for a very good price with some minor issues. I got it cleaned up and found it to be ok. I added an auxiliary power tether to both of these engines to help keep them alive over turnout gaps. These engines had the annoying feature of needing to be power cycled to restore sounds if the tender lost power momentarily. I modified a Kadee 700 series coupler for the 3667’s pilot to couple up for doubleheading. Here’s some phone shots and a YouTube link (can never seem to embed these right):
Youtube link: https://youtu.be/ZsJq1BgQ360