Horns - 6 to 12 volt

[koates]

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Originally Posted by ford38v8

Kevin, Drbrown wasn't asking if it would work, he was telling how he made it work.

Kinda looks like the key to invention is to not have advance knowledge that it won't work.

I will try to re answer this question. Two horns connected in series will work to varing degrees, but not in tune as originally designed by the OEM. The internal components of each horn have a coil winding and a set of contacts in series with the coil winding. Connect another horn in series with the first horn and you then have two sets of contacts opening and closing at a rapid rate and interfering with the current flowing in both horn coils. This does not make for an efficient operating set of horns. As I stated earlier a parallel connection is the CORRECT way to connect horn sets so that they do not interfere with each other. I guess that some people are happy enough that the horns just make some sort of noise. Macs and others do supply resistors capable of operating 6 volt horns on 12 volts. Other cases do arise where 6 volt electrical items can be connected in series to work well on 12 volts. These items are usually bulbs or electric motors etc which have a constant current draw. To ford38v8 s little statement about advance knowledge, yes a do have a little bit of that, about 55 years in the auto electrical trade !!! Regards, Kevin.