The #10 I'm working on was missing a headlight, and the remaining one was in pretty poor condition; I purchased a new pair from Henning's ().
When I removed the old light, it was wired to the "red" terminal on the "e unit disc" (or whatever it's called):
...(you can see the red terminal to the right of the photo.)
Directly opposite that is a "yellow" terminal: if I attach the other light to it, will that give me a directional effect?
Sorry if this is an elementary question...
Mark (still having fun) in Oregon