@M. Mitchell Marmel posted:Personal experience. I did a zener diode install identical to the above link on a ZW, and had to reverse the track leads in order for electronic horns to work properly.
- Mitch
Reverse the diode. The stud type diodes can't be reversed easy, but often are made two ways, annode stud or cathode stud. (They should note that really; but your context was a mystery for me too.)