Big tweeters
rasbury
Member Posts: 8,381 ✭✭✭✭✭
Ha! Got your attention. I recovered (aka saw them sticking out of the marina dumpster) and have had them sitting. My horn makes a week nothing 'sound'. They don't check boats around here except for drinking and fish for the most part. Anyway, I tested the horns with my jump box and nothing on either horn. I pulled it apart..looks like a contact that is normally closed I guess until you 12v it? Looks like little to go wrong, how do they work/fail? Oh, by the way there are two" tweeters", odd both failed at the same time...
Comments
Amazon.com: Hosa D5S-6 CAIG DeoxIT 5% Spray Contact Cleaner, 5 oz. : Automotive
This stuff is great for any contacts on a boat. I've had the can for years and it will work with just a small squirt.
Dream 'Inn III -- 2008 400 Express
My two yr old horns are also acting up, I'm buying some of that thanks @Dream_Inn
Dream 'Inn III -- 2008 400 Express
A diaphragm horn is a really simple concept. It is basically a coil and armature that makes it go back and forth. When you push the button, it makes a magnetic field using the coil inside the core, this will vibrate the diaphragm which makes the noise. As the armature moves, the contacts break (pull apart), which then causes it to lose current, thus nothing pulling on the armature, so the diaphragm goes back. Then it makes contact again and starts all over.
It sounds like it works just a little, which means you are getting the current, at least once, but if the contacts are not clean, it won't continue. I believe you need something like the contact spray to use in there to clean them up.
here is link that describes this process better than I did
Horn (aanddnotes.github.io)
Dream 'Inn III -- 2008 400 Express