[seabee4life]

as i am now putting lights around my set up i have 30 of them i need t wire up i have the resitors for them but since i ant to conect them all in series with one another do i just need one or all for each one ?

 

[tjcruiser]

Are you sure you want them in series, not parallel? What type of bulbs?

 

[seabee4life]

i have no idea just cheap ones of ebay i want them ALL TO TURN ON WHEN I HAVE THE TRAIN ON so does that mean it needs to be on a switch

 

[T-Man]

Do three in series for 18 volts and have 10 parallel sets.
Attach the feed wires to the acc. terminals. No switch, when you power the transformer it will light.
More desciption is always helpful.

 

[tankist]

i would do it with LED's. connect to supply via rectifier bridge (so it is direction of movement independent) and drop the voltage to constant 5V with 7805 regulator. this way lights will always glow with constant brighntess. if throttle is above 5V (20-30% throttle) that is.