In my Protothrottle research, I’ve been playing with Airwire quite a bit. Since I don’t get out much, I didn’t know you could still get your hands on these little receivers, but it seems they are plentiful. A quick solder job and connection to my DCC amp and there ya go. Five Amps of DCC battery power. Not bad. If I go for less current, I can remove the heatsink and probably fit this in some pretty small little locos. Those Soundtraxx 2A decoders are pretty small. Hmm.