[Mike V. Florida]

Do you have a volt meter that measures amps?


If the lights light up then you know that the path from the battery to the lights and back to the battery. So that circuit works. If you had a short the electricity would take a shortcut back to the battery and the lights would not light.


Did you know that most of the circuit breakers (CB) that are used in place of the glass fuse have a right way and wrong way to be installed? You will see a copper and chrome rivet. On a negative ground vehicle (modern) the copper prong goes to the battery side and the chrome goes to the equipment. On our Model A positive ground, the chrome prong goes toward the battery and the copper goes to the cars equipment. Hope this is clear. The stock A is backwards from modern cars and the marking are also backwards for our car.


I would replace the CB with a fuse and see what happens.