Can someone tell me where I can find info on a PHOTOCELL type detection signalling system, that would enable me to use an absolute permissive block control system? With optical detection can you use anyones signal control cards? I model PRR in HO. I know about the Logic Rail System but would like to know about other systems. A reference to a magazine article would be appreciated also.
Bob D As long as you surface as many times as you dive you`ll be alive to read these posts.
Try this site.
http://home.cogeco.ca/~rpaisley4/CircuitIndex.html