This thread got me thinking... I knew I had this (a 6-18003 4-8-4... inherited from my mother from whom I got my love of trains!!!), but it hasn’t seen the light of day in over 30 years. And even at that, it has probably only seen, at most, 30 minutes on the tracks. So off I went digging and found it. According to the label on the end of the box, it has magne traction, the infamous electronic mighty sound of steam, and, long before modern times, “steam emissions from the steam chest” 
My understanding is that the DL&W referred to them as Poconos, not Northerns - and living in the Poconos for the last 25 years, it is so appropriate!!!
