In answer to your answers

The build holder is new having just been purchased from Moss
I have a volt meter but it is a digital one so I assume I need to go the bulb route?
What do I need to do now?

I am in the final stages of restoring my TC I have a problem in so much that the ignition light will not go out. I have installed a new wiring loom and have checked it a couple of times to no avail. I have taken the dynamo to be tested and it came back with an ok I am not sure how to go about testin...