A Simple Lights on Buzzer - FYI
Printed From: the12volt.comForum Name: Lights, Neon, LEDs, HIDs
Forum Discription: Under Car Lighting, Strobe Lights, Fog Lights, Headlights, HIDs, DRL, Tail Lights, Brake Lights, Dashboard Lights, WigWag, etc.
URL: https://www.the12volt.com/installbay/forum_posts.asp?tid=102695
Printed Date: May 09, 2025 at 6:31 AM
Topic: A Simple Lights on Buzzer - FYI
Posted By: stealthone
Subject: A Simple Lights on Buzzer - FYI
Date Posted: March 01, 2008 at 8:23 PM
Here is an easy way to hook up a lights on buzzer using a 9-12v buzzer (check Radio Shack) and a diode. When the power is removed from the ignition switched line, it becomes a resistive path to ground. This allows the power to find its way to ground. When the ignition is on, there is no differential between the two buzzer leads. The diode keeps the power from backfeeding.
