Air Horns

How can I convert a car horn as a buzzer for an electronic scoreboard?

The scoreboard's buzzer is not that loud so I tried wiring a car horn hoping for a louder noise. Instead it just made a small "zit" sound when I pressed the button. Is it possible to wire it? If yes How?

Public Comments

1. Car horn needs 12V - 15V DC, probably about 20Amps. This is normally too much for a switch, and they use a relay. you can get a cheap automotive relay. Either use a 12V battery with a charger, or a big 12V power supply.