I am experimenting with constant lighting to go in the car. I will post more details as my experiments progress.
I found a glass blower who made lamp shades for Dolls Houses. This is the sample lamp shade he made for my model. The final versions were frosted white.To test the circuitry a test-bed was constructed and run on the Stockwood layout for a session. Here is a picture of the test-bed stationary and all the lights ablaze. The headlamp and tail-lights automatically change direction. The lights automatically switch off after 1 min 30 sec. All bulbs are 3 volt.After much experimentation I finally found some white LEDs that seemed to fit the bill. They are 1mm surface mount devices and run at 5 volts, drawing 20mA each.I took a quick shot into the lower saloon and it looks quite pleasing.Test of some LEDs for the destination blocks. These white LEDs are very bright. I decided to use indirect light in the final installation.Testing the upper-saloon lights.Upper Saloon through front window.This is the lighting unit for the upper saloon destination panel. These are Proto-white LEDs mounted to provide indirect lighting. The resistance was adjusted to control the brightness; these LEDs are very bright and directional.Here is the panel under test.Close up in the dark. I was not happy with light leakage, so I painted the back of the blinds black and used coloured paper to obscure the LED in the route colour.The final result under test. A great improvement.