@KarlDL posted:Nice work, so far. If you're going to use relays to fire the couplers, feed track AC to the couplers instead of rectified DC, to preclude momentary DC supply sag. I may design a relay-based coupler interface board before the year's out, as an alternative to my DC-based transistor board.
That's the plan, as I was told by Gunrunner that they're AC coils. Smoke unit is strictly AC too, so I will need a relay for it as well. I ended up ordering relays with 24 volt coil ratings, but Digikey stated they will operate at minimum 18 volts DC
