I'm fairly certain my DC supply can share the same terminal block as the common from my AC accessory transformer. Now I use a number of arduino's for animations such as my crossing gates, animated water tower, randomly timed lighting, etc. I have found that any accessories with a coil such as the Oil Derek 455, older 0-27 remote turnouts and older uncoupling track is causing the servos and other DC components to trigger/glitch/activate when the coils are energized. Does anyone have a solution for this? I'm guessing a ceramic capacitor would probably stop this if put across the coil but I'm not 100%.
Cheers,