Switch Between Train Horn and Normal Horn

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zsupra1221

Member - Posts: 36

Joined: November 25, 2007

Location: New Jersey, United States

Posted: November 27, 2007 at 9:12 AM / IP Logged

Hey guys,

I want to wire my train horn to my normal car horn. I want to install a switch that i just click and it will change from my normal car horn sound to my train horn sound. I want both noises to happen when I push the normal car horn. I think this involves relays, which I am completely clueless about. Thanks for any help given.

-ZSupra1221

tvcomputerwiz

Member - Posts: 25

Joined: December 09, 2006

Location: United States

Posted: November 29, 2007 at 7:41 AM / IP Logged

an on/on switch could do that, if im following you correctly.

ebay or electronix.com

zsupra1221

Member - Posts: 36

Joined: November 25, 2007

Location: New Jersey, United States

Posted: November 29, 2007 at 8:10 AM / IP Logged

Right I knew the on/off switch would allow me to switch between them, but how would I wire the train horn into the regular horn yet still be able to use both when I want.

hotwaterwizard

Silver - Posts: 1,350

Joined: December 11, 2003

Location: California, United States

Posted: November 29, 2007 at 8:45 AM / IP Logged

Are you wanting Both to put out sound at the same time or one at a time?

John DeRosa (Hotwaterwizard)

Stockton California

When in doubt, try it out !

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zsupra1221

Member - Posts: 36

Joined: November 25, 2007

Location: New Jersey, United States

Posted: November 29, 2007 at 9:44 AM / IP Logged

one at a time, I would like the option to use one or the other

tvcomputerwiz

Member - Posts: 25

Joined: December 09, 2006

Location: United States

Posted: November 29, 2007 at 10:00 PM / IP Logged

use a standard 5 connector relay and a regular on/off switch

hotwaterwizard

Silver - Posts: 1,350

Joined: December 11, 2003

Location: California, United States

Posted: November 29, 2007 at 10:05 PM / IP Logged

Here are 2 circuits One with just a switch and the other using a Relay

Switch Between Train Horn and Normal Horn -- posted image.

John DeRosa (Hotwaterwizard)

Stockton California

When in doubt, try it out !

zsupra1221

Member - Posts: 36

Joined: November 25, 2007

Location: New Jersey, United States

Posted: November 30, 2007 at 6:47 AM / IP Logged

so which one would be better? would they both make it so I can push the horn on my steering wheel and depending on which one the switch is on, be able to switch between the train horn and then regular horn ?

hotwaterwizard

Silver - Posts: 1,350

Joined: December 11, 2003

Location: California, United States

Posted: November 30, 2007 at 8:00 AM / IP Logged

The switch is better to me because no extra power source is needed.

The switch has to be able to handle the current from the horn.

Here is how you do it.

pull the wire off of the existing horn. Put that wire to the center post on the switch.

now run one side of the switch to the horn and the last post on the switch goes to the second horn.

Switch Between Train Horn and Normal Horn -- posted image.

John DeRosa (Hotwaterwizard)

Stockton California

When in doubt, try it out !

zsupra1221

Member - Posts: 36

Joined: November 25, 2007

Location: New Jersey, United States

Posted: November 30, 2007 at 8:31 AM / IP Logged

wow thanks for your help that was perfect!

How do I determine whether or not the switch can handle the current for the horn?

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