A while back I purchased a Lionel #55 Tie Ejector from a flea market. It did not, however, come with track activators, so I purchased a pair of those from a parts dealer. Both bear the part number 54-126, but they are different. One is a simple all black device which attaches easily to the track and seems simple to use. The other, while it starts out as a duplicate of the first, also has a long silver-colored metal strip attached to the black unit with a spring. What is the difference between the two? I find both described in my Lionel Repair Manual but there’s no explanation as to how they should work.
John