The HORN

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Acadia_john
Posts: 23
Joined: Mon Jan 07, 2019 8:37 am
First Name: John
Last Name: Eaton
* REQUIRED* Type and Year of Model Ts owned: 1926 Touring, 1923 Fordor, 1923 Coupe, 1923 Express, 1914 Roadster, 1912 half size Roadster
Location: Nova Scotia, Canada
MTFCI Number: 23563

The HORN

Post by Acadia_john » Wed Apr 29, 2020 3:22 pm

Should all of the electric horns sound the same, even the 1926/27. My 23 has a very distinctive sound ( kind of a BERRZZZE) as many of the Model T's I have herd over the years. I wonder if the 26 should have the same sound. I just got a 26 touring and the horn BEEPS. Will need to look for a new horn or it ok? Thanks in advance., John
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RajoRacer
Posts: 4308
Joined: Sun Jan 06, 2019 12:18 pm
First Name: Steve
Last Name: Tomaso
* REQUIRED* Type and Year of Model Ts owned: 1914 Touring, 1919 Centerdoor, 1924 TT C-Cab Express, 1925 Racer
Location: Longbranch, WA
MTFCA Number: 14972
MTFCI Number: 15411
Board Member Since: 2001

Re: The HORN

Post by RajoRacer » Wed Apr 29, 2020 3:49 pm

Is it a Ford horn ? How's about a photo ?

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RajoRacer
Posts: 4308
Joined: Sun Jan 06, 2019 12:18 pm
First Name: Steve
Last Name: Tomaso
* REQUIRED* Type and Year of Model Ts owned: 1914 Touring, 1919 Centerdoor, 1924 TT C-Cab Express, 1925 Racer
Location: Longbranch, WA
MTFCA Number: 14972
MTFCI Number: 15411
Board Member Since: 2001

Re: The HORN

Post by RajoRacer » Wed Apr 29, 2020 3:50 pm

Sorry - should have answered your question first - yes, all Ford electric horns should sound the same albeit, I believe one can adjust the tone.


Norman Kling
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First Name: Norman
Last Name: Kling
Location: Alpine California

Re: The HORN

Post by Norman Kling » Wed Apr 29, 2020 4:06 pm

There is a magneto horn which operates on AC and a battery horn which operates on 6V DC. They have a different sound.
Norm


Piewagon
Posts: 106
Joined: Thu Jan 10, 2019 8:38 pm
First Name: John
Last Name: Regan
* REQUIRED* Type and Year of Model Ts owned: 1911 Open Runabout, 1911 Touring, 1912 Delivery Cars (2), 1915 Roadster, 1916 Roadster, 1923 Touring Car
Location: St. Charles, IL
MTFCA Number: 14725
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Re: The HORN

Post by Piewagon » Thu Apr 30, 2020 12:44 pm

Since I made electric horns for Model T's I did some research to see how I was going to do it. During that research I noticed some things. One is that there were several makers of the "Battery" horn through the years but generally speaking they all worked on the same principle namely that DC current was applied to a basic solenoid driver coil but in a few versions they used double coils with double plungers and those did make a slightly clearer (and louder) sound. The thing that made it a vibrator was a set of points in series with the driver coil(s) and those points were opened and closed by the same plunger that was striking the horn metal diaphragm. Unfortunately when those points were shot they were not an easy replacement item and often the horn owner would file the points and bend the points holding hardware every which way to get it to "honk" some more and finally the horn was pretty sad in that the points part was wrecked beyond easy repair. My new horn did away with the points and used an electronic time base vibrator to honk the horn and those never need point replacement since there ARE NO POINTS inside. The rest of the horn was made exactly to Ford drawings so all of the metal parts of the repro battery horns are interchangeable with original but there is no points holder inside. The other "up" side of those horns is that they can be adjusted to work perfectly at 6V and draw the 5 amps that the battery horn normally demanded. But when adjusted for 12V operation then the draw was 2.5 Amps and no dropping resistor was needed nor is it a good idea to try a voltage dropping resistor on those repro horns in order to make a 6V version work with a 12V battery. It is way better to just send it in to be adjusted since that is all it needs for a 6V to become a 12V or vice versa.

Hope this helps.

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