The Ford Barn

larry harding · 07-22-2018, 12:43 PM

i set my ccpu up with 12 volts - ground, i know a sin in some purists eyes. everything is just better on 12v in my personal opinion, as i have converted several bikes and so on to 12 v over the years. i ordered the voltage drop from mikes in ga. the drop looked like some kind of ceramic resistor(didn't appear to be wire wound) with a heat sink. the horn sounded weak but worked, more of an aaaaah......oooooo.......ga. not the crisp sound i wanted. after a dumb mishap i accidently burned the field coils on that horn. i had another horn that blows fine, but wouldn't work at all through the resistor. i wonder if this resistor is passing enough current to blow the horn. i did electrical work all my lifew so i know i've got a circuit all the way to the horn button. if i ground the connection in the switch on the stearing column i get an arc but no noise from the horn.
next question... i'm going to try and rewind the field coils in the first horn. somewhere on this site i saw something about winding twice the turns usinf smaller wire and making the horn 12v. are there any details on this converion?

07-22-2018, 12:43 PM	#1
larry harding Senior Member Join Date: Sep 2015 Location: western n.c. Posts: 437	horn resistor etc i set my ccpu up with 12 volts - ground, i know a sin in some purists eyes. everything is just better on 12v in my personal opinion, as i have converted several bikes and so on to 12 v over the years. i ordered the voltage drop from mikes in ga. the drop looked like some kind of ceramic resistor(didn't appear to be wire wound) with a heat sink. the horn sounded weak but worked, more of an aaaaah......oooooo.......ga. not the crisp sound i wanted. after a dumb mishap i accidently burned the field coils on that horn. i had another horn that blows fine, but wouldn't work at all through the resistor. i wonder if this resistor is passing enough current to blow the horn. i did electrical work all my lifew so i know i've got a circuit all the way to the horn button. if i ground the connection in the switch on the stearing column i get an arc but no noise from the horn. next question... i'm going to try and rewind the field coils in the first horn. somewhere on this site i saw something about winding twice the turns usinf smaller wire and making the horn 12v. are there any details on this converion?