This is the experimental version of the PRR signal. The signal thing is made of cardboard, and I put a wee-bit of "silly-putty" to hold it. The light bulb is from the set 7897 or 7898, and the 9V battery box is old (from 1997, I think).
I will upgrade the signal later.
Please rate and comment.
Thanks for reviewing, Legodac. I am still working on the layout. ;) I am also working on the other accessories powered by an old RCX (but I'm still having a problem with it because those lame-butt Sanyo batteries die often). D=<