The Ford Barn

Synchro909 · 08-14-2021, 09:54 PM

Some time ago, I saw here details on how to rewind a Model A horn for 12 volts but I can't find it now. Does anybody have the info please. I recall it gave the number of turns and gauge of wire for both 12 and 6 volts. Mine are 12 volts.
I've given up trying to keep a crappy horn working. I know there is a sector on the commutator that is not doing anything so a rewind is in order.

PalAl · 08-14-2021, 10:23 PM

Syncro, is this what your looking for?

http://www.santaanitaas.org/wp-conte...ooguh-horn.pdf

Synchro909 · 08-15-2021, 12:56 AM

Quote:

Originally Posted by PalAl

Syncro, is this what your looking for?

http://www.santaanitaas.org/wp-conte...ooguh-horn.pdf

Thanks, Al. That is the one. Now all I have to do is find some 24 g wire or close to it - we are metric. 24 g is 0.5105 mm dia. 0.5 will likely do, I hope.

rotorwrench · 08-15-2021, 10:26 AM

My conversion chart shows 24 AWG converts to .020-inch or 0.51 mm. Magnet or winding wire should be available in sizes comparable to that. A lot of the stuff made here in the US is .556 mm average diameter. Australia may recognize CSA or cross sectional area as the preferable gauge but I don't know for certain. A lot of stuff comes from China now days so who knows what unit of measure they use. As long as it's close to .5 mm or .20 square mm or slightly more then it should be good to go.

katy · 08-15-2021, 10:27 AM

Sponsored Links (Register now to hide all advertisements)

Try an electric motor rewind shop, if you can find one.

08-14-2021, 09:54 PM	#1
Synchro909 Senior Member Join Date: Jun 2014 Location: Melbourne, Australia Posts: 7,496	Rewinding a Horn Some time ago, I saw here details on how to rewind a Model A horn for 12 volts but I can't find it now. Does anybody have the info please. I recall it gave the number of turns and gauge of wire for both 12 and 6 volts. Mine are 12 volts. I've given up trying to keep a crappy horn working. I know there is a sector on the commutator that is not doing anything so a rewind is in order. __________________ I'm part of the only ever generation with an analogue childhood and a digital adulthood.

08-14-2021, 10:23 PM	#2
PalAl Senior Member Join Date: Jul 2016 Location: Orangeville Illinois Posts: 461	Re: Rewinding a Horn Syncro, is this what your looking for? http://www.santaanitaas.org/wp-conte...ooguh-horn.pdf

08-15-2021, 10:26 AM	#4
rotorwrench Senior Member Join Date: Jun 2010 Location: San Antonio, Texas Posts: 16,425	Re: Rewinding a Horn My conversion chart shows 24 AWG converts to .020-inch or 0.51 mm. Magnet or winding wire should be available in sizes comparable to that. A lot of the stuff made here in the US is .556 mm average diameter. Australia may recognize CSA or cross sectional area as the preferable gauge but I don't know for certain. A lot of stuff comes from China now days so who knows what unit of measure they use. As long as it's close to .5 mm or .20 square mm or slightly more then it should be good to go. Last edited by rotorwrench; 08-15-2021 at 10:47 AM.

08-15-2021, 10:27 AM	#5
katy Senior Member Join Date: Jun 2015 Location: Red Deer, Alberta Posts: 5,042	Re: Rewinding a Horn Sponsored Links (Register now to hide all advertisements) Try an electric motor rewind shop, if you can find one. __________________ If you don't hear a rumor by 10 AM, start one!. Got my education out behind the barn!