cab lighting is 5 volts. Headlamps vary usually 1.8 volts unless it runs off track power. If you are gutting a Ps1 loco the small board for the interior lights are separate from the main boards and can be reused. Otherwise make a 7805 regulator circuit. Can also convert to LED lighting.
Here is a 7805 circuit for LEDs.
http://www.jcstudiosinc.com/Bl...d=408&categoryId=426
See other posts on my blog for LED lighting
http://www.jcstudiosinc.com/Bl...tegoryMain?catId=426
If inserting a diode string in series from a reverse board to motor the 2 ends can be tapped to drive a 1.8 volt headlamp if a diode is also in series for constant voltage directional lighting.
http://www.jcstudiosinc.com/Bl...d=488&categoryId=426
Dale H
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