Guys I have an electric horn on my magneto pickup and would like to find the correct one.
Anyone have photos of the correct horn(s) for the 18 roadster p/u?
I have mine apart for painting, but this shows all the parts. Horns vary because they were supplied by various makers. But you can recognize a magneto horn by the adjusting screw and stop nut in the center of the diaphragm. Battery horns don't have that. If you Google mtfca: magneto horn you should find John Regan's more detailed description of which ones were used when.
This Heco horn has one of those weird thread sizes you find on Model T's. The adjusting screw is ¼-32. Good luck finding that anywhere.
Thank you. Git to gind one now.