Steve, my objective is to keep this a transparent discussion to reach the widest audience rather than a backroom secret handshake exchange of information. From what I can tell, Ray would NOT be doing the actual assembly and hence would undoubtedly refer to this thread to solicit help.
1. What are the Atlas item numbers that you are proposing for his signaling?
2. Are you providing the signal head themselves and are these low-current LED vs. bulbs?
3. I am proposing to "tap" into the voltages going to the signal head. Specifically, it appears from the Hump Yard Mike's above linked thread that there is a modular phone-jack connector going to the Red-Yellow-Green signal head. What voltages are on that connector? What is the pin-out? Is common referenced to track outer rail? As shown in the reverse-engineered schematic in the above linked thread, is it really "just" a 5V PIC microcontroller output pin thru a resistor? Do you provide a breakout board to split the phone-jack output to drive multiple parallel signal heads...or in this case to steal the signals to drive relays for track voltage control?
