Jbb posted:Hi all
...What I want is classic block control -- slow down a faster train behind a slower train while turning the signal lights from red to green.
Just to be clear, are you trying to slow down a faster train or stop it? I notice you mention applying 5V to the trailing block. It seems the speed of a 5V engine might vary wildly or even stall depending on load. Or do you fully expect it to stop and you're just applying some kind of electronics sustaining keep-alive voltage to run lamps, a sound-board, or whatever?