Car Horn

Top Car Horn Recommendations

Top Car Horn Recommendations

Are you looking for car horn?


Here's Car Horn Selections:

Wolo Model 125 The Dominator Stainless Steel Dual...

 Customer Review:
Click Here for More Info

$129.99
 

Wolo Model HS-2 Horn Switch And Wire Hook-up Kit...

 Customer Review:
Click Here for More Info

$17.99
 

Pair of DC 12V Car Auto Vehicle Warn Loud Horn Tru...

 Customer Review:
Click Here for More Info



 

Wolo Model 419 Bad Boy Black One Piece Design Air...

 Customer Review:
Click Here for More Info

$69.99
 

FIAMM 72112 Freeway Blaster Horn...

 Customer Review:
Click Here for More Info

$15.91
 



korek api
 
Today's Discussion

What is the typical resistance of a car horn?
I got this old 12V car horn that I'm trying to connect to a simple switch circuit. One of the horns measure .9 Ohms, the other 1.3. I've been trying to drive it with a bench supply, which goes up to 2A. When I connect the terminals together I hear a click inside the horn but no other sound, and it's clear the horn is supposed to have more power. (up to 5A?) So the question is - does evidence above show that the horn is broken, or I simply don't have enough power for it?

Reply
Love the Cotswolds
I would first test the horn across a 12V car battery to verify the functionality of the horn. If it blows, obviously the bench supply does not have the power needed to blow the horn. Hope this helps. Good Luck!

Lana T
I've never bothered to measure the ohms of resistance, but I can tell you an easy way to test the horn... just take two jumper leads from the car battery posts and tap the terminals on the horn. If it beeps, it's good, if it doesn't beep, it's not good. Test complete.

billrussell42
At 0.9 ohms and 12 volts, it will take 13 amps. A car system supplies 14-15 volts when being charged, and at 15 volts, that is 16 amps. but car horns I looked at online draw 3-5 amps, so perhaps there is something wrong with the one you have. .

xpto
The supply hasn't power enough to drive the horn. Check it in you battery car. The behavior you described is normal when there is no amps enough. Any way remember the horn has an internal contact which switches the coil on and off, so the medium current will be lower than that calculated trough ohmic resistance.

hobart_elf
The bench supply is not able to deliver the 13.3 amps required by an 0.9 ohm load at 12 volts.




Related Images
                

Related News
Thu, 24 May 2012 04:48:45 GMT
INDYCAR: Miller's Greatest Indy 33, Rows 9, 10, 11
SPEEDtv.com
Ted Horn – If you were a car owner and wanted to make money then bringing Horn to Indy was like having a personal ATM back then. A three-time AAA champion, he reeled off consecutive finishes of 2-3-4-4-4-3-3-3-4 at the Speedway. 27.

and more »
Thu, 24 May 2012 00:36:58 GMT
Moncks Corner police charge Wilton Quitman Greene II with armed robbery and ...
Charleston Post Courier
Moncks Corner police arrested an armed robbery suspect Tuesday after a man being robbed drove his car erratically and blew the horn to attract an officer's attention. The robber was holding a knife but ran from the car when the officer approached and ...

and more »