6v to 12v

[charlie d]

Converting to 12v, Do I need a voltage reducer for the horn?

[Busmoss]

Hey charlie d, It won't sound authentic on 12v might as well get a 12v horn and save your original. The crowd on this site is usually restoring/operating cars in orthodox form. Might have better luck on sister site "H.a.m.b" for customizing your Model A.
Still, Lot of good detailed info on this site. There are a lot of gurus lurking around here that have helped me in the past. These are also the folks who strive to have their cars exactly how it left the factory all those years ago. Really an admirable facet of Model A culture!

[Synchro909]

The vendors sell resistors for the horn like you want.
If you're going to 12 volts, DON'T leave the starter unmodified. Even the thicker 5/8" shafts bend. I've straightened them for enough owners who believed what they had been told about them being fine. They will be for a while but eventually, they will bend

[Busmoss]

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Shoot, I just used search function the forum "12 volt horn" and found this topic was covered recently. That's what happened.
I would copy a link but I am on a chromebook